• Gossen Metrawatt
  • Gossen
  • Camille Bauer

Technical Features

U1603 U1602 U1601
Item number U1603 U1602 U1601
Product details page Details Details Details
Dynamic range limit ±1,25 X2 ±1,25 X2 ±1,25 X2
Chapter06 Analog output (voltage)
Analog output (current)
Switching output (binary)
Switching output (relay)
Analog output (voltage)
Analog output (current)
Switching output (binary)
Switching output (relay)
Analog output (voltage)
Analog output (current)
Switching output (binary)
Switching output (relay)
Protection Terminals: IP 20
Housing: IP 40
Terminals: IP 20
Housing: IP 40
Terminals: IP 20
Housing: IP 40
Participants per segment 16 (32 where loop resistance is less than < 100 Ω) 16 (32 where loop resistance is less than < 100 Ω) 16 (32 where loop resistance is less than < 100 Ω)
Max. input current ≤ 2.5 X2 ≤ 2.5 X2 ≤ 2.5 X2
Relative humidity 75%, no condensation allowed 75%, no condensation allowed 75%, no condensation allowed
Model Switching output (binary): electrically isolated, passive
Switching output (relay): electrically isolated
Electrically isolated Electrically isolated Electrically isolated Switching output (binary): electrically isolated, passive
Switching output (relay): electrically isolated
Electrically isolated Electrically isolated Electrically isolated Switching output (binary): electrically isolated, passive
Switching output (relay): electrically isolated
Electrically isolated Electrically isolated Electrically isolated
Connection elements Plug strip with screw connector (up to 255 users) Pin strip, sub- miniature D9 Plug strip with screw connector (up to 63 users per station) Plug strip with screw connector (up to 255 users) Pin strip, sub- miniature D9 Plug strip with screw connector (up to 63 users per station) Plug strip with screw connector (up to 255 users) Pin strip, sub- miniature D9 Plug strip with screw connector (up to 63 users per station)
Input resistance 118kΩ
X2: 20 mA: 75 Ω
X2: 5 mA: 300 Ω
118kΩ
X2: 20 mA: 75 Ω
X2: 5 mA: 300 Ω
118kΩ
X2: 20 mA: 75 Ω
X2: 5 mA: 300 Ω
Terminal resistor Can be connected Can be connected Can be connected
Maximum values ??of measuring intervals; with date and time P maxint: the 10 highest values from all measuring intervals after the specified starting time
P maxDay: respective daily maximum value for the current day and the last 10 days
P maxMonth: respective monthly maximum value for the current month and the last 12 months
P maxYear: the highest value from the current year, and the highest values from the last four years
E maxint: the 10 highest values from all measuring intervals after the specified starting time
E maxDay: respective daily maximum value for the current day and the last 10 days
E maxMonth: respective monthly maximum value for the current month and the last 12 months
E maxYear: the highest value from the current year, and the highest values from the last four years
P maxint: the 10 highest values from all measuring intervals after the specified starting time
P maxDay: respective daily maximum value for the current day and the last 10 days
P maxMonth: respective monthly maximum value for the current month and the last 12 months
P maxYear: the highest value from the current year, and the highest values from the last four years
E maxint: the 10 highest values from all measuring intervals after the specified starting time
E maxDay: respective daily maximum value for the current day and the last 10 days
E maxMonth: respective monthly maximum value for the current month and the last 12 months
E maxYear: the highest value from the current year, and the highest values from the last four years
P maxint: the 10 highest values from all measuring intervals after the specified starting time
P maxDay: respective daily maximum value for the current day and the last 10 days
P maxMonth: respective monthly maximum value for the current month and the last 12 months
P maxYear: the highest value from the current year, and the highest values from the last four years
E maxint: the 10 highest values from all measuring intervals after the specified starting time
E maxMonth: respective monthly maximum value for the current month and the last 12 months
E maxYear: the highest value from the current year, and the highest values from the last four years
Input quantity Direct voltage (square-wave pulses, S0 compatible)
Direct current
Direct current (square-wave pulses, S0 compatible) Direct voltage (square-wave pulses, S0 compatible)
Direct current
Direct current (square-wave pulses, S0 compatible) Direct voltage (square-wave pulses, S0 compatible)
Direct current
Direct current (square-wave pulses, S0 compatible)
Input range –X2 ≤ X ≤ +X2 –X2 ≤ X ≤ +X2 –X2 ≤ X ≤ +X2
Max. output current Analog output (voltage): ≤ 40 mA
Analog output (current): ≤ 25 mA
Analog output (voltage): ≤ 40 mA
Analog output (current): ≤ 25 mA
Analog output (voltage): ≤ 40 mA
Analog output (current): ≤ 25 mA
Perm. switching elements Semiconductor switch, relay Semiconductor switch, relay Semiconductor switch, relay
Type of storage Consecutive Consecutive Consecutive
Transmission speed Channel A/B: 1200 … 115,000 bit/s 78 kbps Channel A/B: 1200 … 115,000 bit/s 78 kbps Channel A/B: 1200 … 115,000 bit/s 78 kbps
Number 1 (FTT-10, 2-wire twisted-pair) 1 (channel A and channel B) 2 Switching output (binary): 4
Switching output (relay): 2
1 (FTT-10, 2-wire twisted-pair) 1 (channel A and channel B) 2 Switching output (binary): 4
Switching output (relay): 2
1 (FTT-10, 2-wire twisted-pair) 1 (channel A and channel B) 2 Switching output (binary): 4
Switching output (relay): 2
Chapter21 Storage of measured values Storage of measured values Storage of measured values
Interpulse period Toff (parameters configurable) ≥ 2 ms ≥ 2 ms ≥ 2 ms
Chapter18 Costs Costs Costs
Pulse frequency ≤ 250 Hz ≤ 250 Hz ≤ 250 Hz
Chapter22 Climatic withstand capability Climatic withstand capability Climatic withstand capability
Max. input voltage Continuous ≤ 48 V
Short-term (t ≤ 1 s) ≤ 60 V
≤ 30 V Continuous ≤ 48 V
Short-term (t ≤ 1 s) ≤ 60 V
≤ 30 V Continuous ≤ 48 V
Short-term (t ≤ 1 s) ≤ 60 V
≤ 30 V
Mounting position Any Any Any
Permissible deviation 10 ppm = 5.3 min. per year 10 ppm = 5.3 min. per year
Parity Even / no check Even / no check Even / no check
Chapter20 Display Display Display
Operation mode Handshake Xon/Xoff or RTS / CTS
Full-duplex
Multi-master, half-duplex or full-duplex LonTalk protocol (CSMA) Handshake Xon/Xoff or RTS / CTS
Full-duplex
Multi-master, half-duplex or full-duplex LonTalk protocol (CSMA) Handshake Xon/Xoff or RTS / CTS
Full-duplex
Multi-master, half-duplex or full-duplex LonTalk protocol (CSMA)
Accumulated energy for defined periods E Day for the current day and each of the last 10 days
E Month for the current month and each of the last 12 months
E Year for the current year and each of the last four years
E int for all saved measuring intervals (measurement data list)
E Day for the current day and each of the last 10 days
E Month for the current month and each of the last 12 months
E Year for the current year and each of the last four years
E int for all saved measuring intervals (measurement data list)
E Day for the current day and each of the last 10 days
E Month for the current month and each of the last 12 months
E Year for the current year, last year, and the year before last
E int for all saved measuring intervals (measurement data list)
Pulse duration Ton (parameters configurable) 10ms - 2550ms 10ms - 2550ms 10ms - 2550ms
Operating cycles Switching output (relay): ≤ 10^5 Switching output (relay): ≤ 10^5 Switching output (relay): ≤ 10^5
Max. output voltage Analog output (voltage): ≤ 12,5 V
Analog output (current): ≤ 30 V
Analog output (voltage): ≤ 12,5 V
Analog output (current): ≤ 30 V
Analog output (voltage): ≤ 12,5 V
Analog output (current): ≤ 30 V
Altitude To 2000 m To 2000 m To 2000 m
Chapter19 Power Power Power
Status display 2 LEDs 1 LON LED active 2 LEDs 1 LON LED active 2 LEDs 1 LON LED active
Final value Y2 10 V
20 mA
10 V
20 mA
20 mA
10 V
Bus termination 50/100 Ω can be connected 50/100 Ω can be connected 50/100 Ω can be connected
Data protocol HDLC/SDLC (adapted to multi-master needs). HDLC/SDLC (adapted to multi-master needs). HDLC/SDLC (adapted to multi-master needs).
Load range Analog output (voltage): 2,5 kΩ ≤ 5 kΩ < ∞
Analog output (current): 0 ≤ 250 Ω ≤ 400 Ω
Analog output (voltage): 2,5 kΩ ≤ 5 kΩ < ∞
Analog output (current): 0 ≤ 250 Ω ≤ 400 Ω
Analog output (voltage): 2,5 kΩ ≤ 5 kΩ < ∞
Analog output (current): 0 ≤ 250 Ω ≤ 400 Ω
Chapter02 Analog input (voltage)
Analog input (current)
Analog input (voltage)
Analog input (current)
Analog input (voltage)
Analog input (current)
Switching current Switching output (binary) OFF: ≤ 10 μA
Switching output (binary) ON: ≤200 mA
Switching output (relay): 8 A ohmic, 3 A inductive
Switching output (binary) OFF: ≤ 10 μA
Switching output (binary) ON: ≤200 mA
Switching output (relay): 8 A ohmic, 3 A inductive
Switching output (binary) OFF: ≤ 10 μA
Switching output (binary) ON: ≤200 mA
Switching output (relay): 8 A ohmic, 3 A inductive
Volume resistance (AC/DC) Switching output (binary): 5 Ω Switching output (binary): 5 Ω Switching output (binary): 5 Ω
Chapter03 Binary input Analog inputs Binary input Analog inputs Binary input Analog inputs
Mean values ??of measuring intervals P int for all saved measuring intervals (measurement data list) P int for all saved measuring intervals (measurement data list) P int for all saved measuring intervals (measurement data list)
Reset of counts to zero Via PC or device keyboard Via PC or device keyboard Via PC or device keyboard
Chapter17 Energy Energy Energy
Transmission (Hamming distance = 4) 15,6 … 375 kbps 15,6 … 375 kbps 15,6 … 375 kbps
Chapter01 System data System data
Switching voltage Switching output (binary): ≤ ±50 V
Switching output (relay): 250 V~, 30 V=
Switching output (binary): ≤ ±50 V
Switching output (relay): 250 V~, 30 V=
Switching output (binary): ≤ ±50 V
Switching output (relay): 250 V~, 30 V=
Output range –Y2 ≤ Y ≤ +Y2 –Y2 ≤ Y ≤ +Y2 –Y2 ≤ Y ≤ +Y2
Accumulated energy from defined starting point E tot tariff-independent
E tot T1 from tariff 1 only
E tot T2 from tariff 2 only
E tot T1T2 from tariff 1 + tariff 2
E tot tariff-independent
E tot T1 from tariff 1 only
E tot T2 from tariff 2 only
E tot T1T2 from tariff 1 + tariff 2
E tot tariff-independent
E tot T1 from tariff 1 only
E tot T2 from tariff 2 only
E tot T1T2 from tariff 1 + tariff 2
Common-mode rejection ≥ 80 dB (≤120 Hz) ≥ 80 dB (≤120 Hz) ≥ 80 dB (≤120 Hz)
Switching element Switching output (binary): Semiconductor relay
Switching output (relay): Relay (changeover)
Switching output (binary): Semiconductor relay
Switching output (relay): Relay (changeover)
Switching output (binary): Semiconductor relay
Switching output (relay): Relay (changeover)
Chapter14 LON interface (interface module for LON) LON interface (interface module for LON) LON interface (interface module for LON)
Dimensions (W x H x D) 212 x 125 x 85 mm 212 x 125 x 85 mm 212 x 125 x 85 mm
Accumulated costs from defined starting point CostT1 from tariff 1 only
CostT2 from tariff 2 only
CostT1T2 from tariff 1 + tariff 2
CostT1 from tariff 1 only
CostT2 from tariff 2 only
CostT1T2 from tariff 1 + tariff 2
CostT1 from tariff 1 only
CostT2 from tariff 2 only
CostT1T2 from tariff 1 + tariff 2
Weight 1.6kg 1.6kg 1.6kg
Duration of storage With backup battery: ≥ 5 years (see also auxiliary power supply - backup battery) With backup battery: ≥ 5 years (see also auxiliary power supply - backup battery) With backup battery: ≥ 5 years (see also auxiliary power supply - backup battery)
Storage depth With one channel: 87,380 entries
With 64 channels: 3971 entries
With one channel: 87,380 entries
With 64 channels: 3971 entries
With one channel: 87,380 entries
With 64 channels: 3971 entries
Chapter09 RS232 interface (M-Bus) RS232 interface (M-Bus) RS232 interface (M-Bus)
Mounting type Top-hat rail mounting
Screw mounted
Top-hat rail mounting
Screw mounted
Top-hat rail mounting
Screw mounted
Smallest time unit 1 s 1 s
Output quantity Direct current
Direct voltage
Direct current
Direct voltage
Direct voltage
Direct current
Connection options Channel A: ECL, modem, terminal, radio-controlled clock
Channel B: ECL, printer, radio-controlled clock. OFF
Channel A: ECL, modem, terminal, radio-controlled clock
Channel B: ECL, printer, radio-controlled clock. OFF
Channel A: ECL, modem, terminal, radio-controlled clock
Channel B: ECL, printer, radio-controlled clock. OFF
Topology (line and/or open ring) ≤ 100 m: mixed
≤ 1200 m: open loop
≤ 100 m: mixed
≤ 1200 m: open loop
≤ 100 m: mixed
≤ 1200 m: open loop
Number of data bits 8 8 8
Series resistor (internal) 4,7 kΩ 4,7 kΩ 4,7 kΩ
Temperature range Operation/function: –10 °C … +55 °C
Storage, transport: –25 °C … +70 °C
Operation/function: –10 °C … +55 °C
Storage, transport: –25 °C … +70 °C
Operation/function: –10 °C … +55 °C
Storage, transport: –25 °C … +70 °C
Chapter13 RS485 interface (Modbus) RS485 interface (Modbus) RS485 interface (Modbus)
Alternating component Analog output (voltage): 0.5% Analog output (voltage): 0.5% Analog output (voltage): 0.5%
Instantaneous value P mom calculated on the basis of the interval between the last two pulses P mom calculated on the basis of the interval between the last two pulses P mom calculated on the basis of the interval between the last two pulses
Cable lengths Bus, terminated: ≤ 2700 m with special cable
Free topology: ≤ 500 m
Bus, terminated: ≤ 2700 m with special cable
Free topology: ≤ 500 m
Bus, terminated: ≤ 2700 m with special cable
Free topology: ≤ 500 m
Material housing Metal Metal Metal
Display element Graphic LCD, 128 x 128 (illuminated)
Format 21 characters, 16 lines