Sensor Wiring
70
Modline 5
measured temperature. The corresponding temperature span is adjustable. Temperature signal
connections are made to the Analog and Analog Out – terminals.
Single or multiple series connected indicators, recorders or other instruments can be connected. The
total current loop series DC resistance of all devices and wiring should not exceed 600 ohms.
Figure 62
The minus side of the Analog Output is connected to power supply common (see section 4.11
, page 79). Use instruments with ungrounded differential inputs. If
instruments with grounded inputs are connected in the loop, the output may be inoperable or
inaccurate.
If the Analog output is not used, insert a jumper wire or 100 Ohm to 500 Ohm value resistor across the
output terminals. This will prevent an Analog Loop malfunction Alarm (Error X108) from occurring.
4.7.6
Converting the Analog Output from a mA output to a 10 Volt Output
To convert the Analog mA output to 0 to 10 Vdc Output, place a 500 Ohm resistor across the output
terminals. The Sensor Analog output (SOUT) should be set to 0 to 20mA range.
The minus side of the Analog Output is connected to earth ground. Use instruments with ungrounded
differential inputs. If instruments with grounded inputs are connected, the output may be inoperable
or inaccurate.
Figure 63
4.7.7
Current Input for Remote Emissivity, E-Slope or Laser Operation
You may make remote adjustments of the Emissivity or E-Slope by sending a scaled analog input of 4
to 20 mAdc. The Modline 5 senses an input and overrides any Sensor rear panel or RS-485 settings of
Emissivity, E-Slope or Match.
600 Ohm
Maximum
Including Cable
Resistance
Sensor
І
OUT = 0 to 20 mA or 4 to 20 mA
500 Ohm @ 0,1%
Sensor
І
OUT = 0 to 20 mA
