The Z-4TC data acquisition module allows the simultaneous acquisition of up to 4 thermocouple or low level voltage signals. Each channel can be configured to a different thermocouple type and selectable software filters ensure reliable values from real world applications. High speed and robust ModBUS RS485 serial communications offers almost universal connectivity. Connections are via quality, plug in screw terminals although enormous savings can be made using the innovative "QuickFix" bus system. This passive bus clips into standard DIN rail and provides both the power and serial communications connections. Modules can be freely added and removed from the bus without interruption of the communications or power to other modules.

Input: 4 Channel Bipolar voltage ±80 mV or Thermocouples (Type J, K, R, S, T, B, E, N)

Power Supply:
Power Consumption:
Isolation:
Overload Protection:
Power Supply Transients:
Transducer Power Supply:
Status Indicators:



Installation Category:
Pollution Category:
Ingress Protection:
Operating Temperature:
Storage Temperature:
Humidity:
Dimensions:
Weight:
Case:
Hot Swapping:
Connections:
Mounting:

19 to 40 VDC or 19 to 28 VAC, 50-60 Hz
Max 2.5 W; 1.6 W @ 24 VDC
1.500 kVAC between inputs, all other low voltage circuits
Inputs protected against overload to 60 V
Transient protection to 400 W/ms
None
Power ON
Error
Data Sending
Data Receiving
II
2
IP 20
0 to +55 °C
-20 to +70 °C
30 to 90% at +40 C (non condensing)
17.5 x 100 x 112 mm (W x H x D)
140 g
Nylon 6, 30% fiberglass filled self extinguishing class V0
Yes
Plug-in screw clamp terminal blocks, wires up to 2.5 mm²
Symmetrical 35 mm DIN rail (Top Hat Section)

Interface:
Baud Rates:
Parity:
Protocol:
Message Turn Round Time:
Input Sample Time:
Communication Distance:
Connectivity:
Data Retention:

2 wire RS485 serial comms
1200, 2400, 4800, 9600, 19200, 38400, 57000 bps
None, even, odd
ModBUS RTU Slave
< 20 ms (@ 38400 baud)
200/400 ms (to update all 4 channels)
1, 200 m maximum without line repeater
Max 32 nodes
EEPROM storage of configuration parameters, minimum 10 years retention

Number of Channels:
Type:

Range:
Input Impedance:
Resolution:
Accuracy:
Linearity:
Stability:
Other Features:

4
Thermocouples (J, K, R, S, T, B, E, N)
Voltage: bipolar
±“““““80 mVDC
> 10 MΩ
5 μV (10 μV @ 14 bit)
0.1% of range
0.02%
Thermal stability: 0.01%/°C
Thermocouple burnout detection
Cold Junction Compensation
Selectable input filter (1-60 sec)

Programming Software:

DIP Switch:
Accessories & Options:
Standards CE:

Configure and set online parameters via serial connection with the Z-Setup package or Ethernet with the Z-NET package (requires Z-TWS)
Force default communication parameters
9-28 VDC
EN 50081-2, EN 50082-2, EN 61000-2-2/4, EN 50140/141, EN 61010-1, EN 60742