100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 358
13.4 THERMOCOUPLE OPTION
13.4.1 Introduction
This option allows the connection of up to 12 type J, K or T thermocouples together with up to two option
boards, or up to 18 thermocouples with no option boards. Transmitter power supply is not available with
this option.
The type of thermocouple (the same for all channels) must be specifi ed at time of order. Each thermocou-
ple input channel will be confi gured at the factory for the specifi ed type of thermocouple and will be set
to a range of 0 to 100 degrees Celsius.
Thermocouple-style connectors with copper terminals can also be fi tted, for use with non-thermocouple
inputs. For such channels the recorder is pre-confi gured as: Function = Linear, Input range = 0 to 1 Volt.
13.4.2 Wiring
SUPPLY VOLTAGE
Caution
Before powering the recorder, check that the supply voltage to be applied lies within the range
specifi ed on the serial number label on the underside of the case.
As shown in Figure 13.4.2a, below, the line supply is terminated using an IEC connector at the rear of the
case. A socket is required to mate with the plug fi tted at the recorder. Minimum recommended conduc-
tor size is 16/0.2 (0.5mm
2
) (20AWG).
SIGNAL WIRING
Signal wiring consists of connecting the transducer wires into the correct type of plug, and inserting the
plugs into the relevant socket at the rear of the recorder.
Figure 13.4.2a shows the arrangement of the connectors at the rear panel for 12 and 18 channel versions.
Figure 13.4.2b shows thermocouple wiring details, and Figure 13.4.2c shows the wiring between the
portable case rear panel and the recorder for a 12 thermocouple option.
Figure 13.4.2a Rear panel connector locations (typical)
Con1
Con2
Con3
Con4
Con5
Con6
1
22
Option board 1
Option board 2
Con7
Con8
Con9
Con10
Con11
Con12
Serial comms (option)
USB Ports (option)
Ethernet RJ45
L
N
E
Mains (supply)
connection
Con1
Con2
Con3
Con4
Con5
Con6
Con7
Con8
Con 9
Con 10
Con 11
Con 12
Serial comms (option)
USB Ports (option)
Ethernet RJ45
L
N
E
Con 13
Con 14
Con 15
Con 16
Con 17
Con 18
Mains (supply)connection