Delta DTM Series - Other Output Function Settings; Output Level When Input Sensor Error; Analog Output Compensation Adjustment

Chapter 4: Output and Alarm Function Configuration
DTM temperature controller operating manual
4-7
4.4 Other Output Function Settings
4.4.1 Output Level When Input Sensor Error
When the input sensor is abnormal, the DTM host and the measurement expansion module can be set this
parameter to make the corresponding output operate. Users can therefore find out from the output level of
specific channels which input channels are in an abnormal state (see [Section 2.7.1] for error status
communications addresses).
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Sensor fail OUT1
power level
Hx100 Hx101 Hx102 Hx103 Hx104 Hx105 Hx106 Hx107
Sensor fail OUT2
power level
Hx140 Hx141 Hx142 Hx143 Hx144 Hx145 Hx146 Hx147
Table – Assignment of communications addresses to I/O expansion modules
 Notes: x indicates the internal station number of the host or measurement expansion module.
4.4.2 Analog Output Compensation Adjustment
When the output type is analog current (4~20mA) or voltage (0~10V), the factory will already have
performed calibration procedures. If the client needs to make fine adjustments, it must be fine-tuned by
adding or subtracting the previously corrected value.
 Example:
[Output channel 1] of the expansion cassette DTM-BDC installed on the DTM host must be calibrated for a
current range of 3.9~20.5mA. Assuming the original current range was 3.75mA~20.25mA, and the lower limit
calibrated value was [H0032 (50)] and upper limit calibrated value was [H00C8 (200)] at the time of default
calibration, analog output compensation will be performed in accordance with the difference:
Analog out lower limit fine tune: 3.9-3.75=0.15mA; 0.15mA/1uA=150; Because the lower limit was already
calibrated at the time of default calibration, the data from the previous calibration must be added when
calibration is performed again: 50+150=200, and the communications content [H00C8 (200)] written to [H0228]
Analog out upper limit fine tune: 20.5-20.25=0.25mA; 0.25mA/1uA= 250; Because the upper limit was
already calibrated at the time of default calibration, the data from the previous calibration must be added when
calibration is performed again: 200+250=450, and the communications content [H01C2 (450)] written to
[H02300]
Analog output current adjustment increment: 1μA/scale; Analog output voltage adjustment
increment: 1mV/scale (communications addresses are shown in the table below)
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Analog out lower limit fine
tune(expansion cassette)
Hx228 Hx229 Hx22A Hx22B Hx22C Hx22D Hx22E Hx22F
Analog out upper limit fine
tune(expansion cassette)
Hx230 Hx231 Hx232 Hx233 Hx234 Hx235 Hx236 Hx237
Analog out lower limit fine
tune (expansion module)
Hy789 Hy78A Hy78B Hy78C Hy7C9 Hy7CA Hy7CB Hy7CC
Analog out upper limit fine
tune( expansion module)
Hy78D Hy78E Hy78F Hy790 Hy7CD Hy7CE Hy7CF Hy7D0
 Notes:
1. In the above table, x indicates the internal station number of the DTM host or measurement expansion module
in which the expansion cassette, DTM-BDC & DTMBDL has been loaded.
2. In the above table, y indicates the internal station number of expansion module DTM-DOC &DTM-DOL.