Eurotherm 3116 PID User's Guide Page 95
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3100/3200 Series
Part No HA028651 Issue 3.0 Mar-06 93
16.3 Input Calibration
If the calibration is not within the specified accuracy follow the procedures in this section:-
In 3200 series instruments, inputs which can be calibrated are:-
• mV Input. This is a linear 80mV range calibrated at two fixed points. This should always be done before calibrating either
thermocouple or resistance thermometer inputs. mA range calibration is included in the mV range.
• Thermocouple calibration involves calibrating the temperature offset of the CJC sensor only. Other aspects of thermocouple
calibration are also included in mV calibration.
• Resistance Thermometer. This is also carried out at two fixed points - 150Ω and 400Ω.
16.3.1 To Calibrate mV Input
Calibration can only be carried out in configuration level.
Calibration of the mV range is carried out using a 50 milli-volt source, connected as described in section 16.1.2. mA calibration is
included in this procedure.
For best results 0mV should be calibrated by disconnecting the copper wires from the mV source and short circuiting the input to
the controller
To calibrate the mV Input, select
Conf Level as described in Chapter 2, set the controller input to mV range, then:-
Operation Do This Display View Additional Notes
Select the Calibration
List header
1. From any display press
as many times
as necessary until the ‘CAL’ page header is
displayed.
Scrolling display ‘
CALIBRATIO N LIST’
Select the Calibration
Phase
2. Press
to select ‘P H A S E ’
none
phase
Scrolling display ‘
CALIBRATIO N phase’
Set mV source for 0mV
Select the low
calibration point
3. Press
▲
or
▼
to choose ‘0’
Calibrate the
instrument to the low
calibration point
(0mV)
4. Press
to select ‘G O ’
5. Press
▲
or
▼
to choose ‘YES’
Scrolling display ‘
CALIBRATIO N start’
The controller automatically calibrates to the
injected input mV. The display will show
busy
then
pass, (if calibration is successful.) or
‘
FAIL’ if not. Fail may be due to incorrect
input mV
Set mV source for 50mV
Select the high
calibration point
6. Press
to select ‘P H A S E ’
7. Press
▲
or
▼
to choose ‘50’
8. Repeat 5 and 6 above to calibrate the high
point
The controller will again automatically calibrate
to the injected input mV.
If it is not successful then ‘
FAIL’ will be
displayed
- 3100/3200 1
- 1.3 Dimensions 8
- 1.4 Step 1: Installation 9
- 1.5 Order Code 10
- 2. Step 2: Wiring 11
- 2.5 Wire Sizes 13
- 2.6 Precautions 13
- 2.13 Current Transformer 15
- Local ground 16
- Diagram 17
- ☺ Helpful hints 18
- Pollution Degree 2 19
- 4. Switch On 20
- Subsequent Starts 21
- 4.4 Front Panel Layout 22
- 5. Operator Level 2 24
- ☺ Press 27
- 5.4 Timer Operation 28
- 5.5 Dwell Timer 29
- 5.6 Delayed Timer 29
- 5.7 Soft Start Timer 30
- 5.8 Programmer 30
- 6.1.1 Level 3 33
- 6.1.2 Configuration Level 33
- 6.2 Parameter lists 35
- ☺ Press and hold 35
- 6.3 Navigation Diagram 36
- 6.4 Access Parameters 37
- 7. Controller Block Diagram 39
- Latching 41
- 9. Input/Output 43
- Note 1: 45
- 1. func 46
- 9.1.7 Output List 2 (OP-2) 47
- 9.1.8 Output List 3 (OP-3) 48
- Digital Input B 50
- 10. Setpoint Generator 52
- 11. Control 54
- 11.2.4 Manual Tuning 55
- 11.10 Control Parameters 57
- Deadband OFF 60
- Deadband ON 60
- 12. Alarms 61
- 12.1 Types of Alarm 62
- together 63
- 12.2.1 Example 1 64
- 12.2.2 Example 2 64
- 12.2.3 Example 3 64
- 12.3 Alarm Parameters 65
- 12.4 Diagnostic Alarms 67
- 13. Timer/Programmer 68
- 13.2 Programmer 70
- 13.2.3 Event Outputs 71
- Configure the Timer 74
- 15. Digital Communications 78
- RS232 80
- Address 81
- 15.4 DATA ENCODING 81
- 16. Calibration 92
- 16.2 Offsets 93
- 16.3 Input Calibration 95
- 0mV. Then: 96
- Ω and 400.00Ω 97
- 16.3.6 CT Calibration 100
- 16.4 Calibration Parameters 101
- 17.1.2 Configuration Clip 102
- 17.2 Starting iTools 103
- 17.3 Starting the Wizard 104
- 17.4 To configure the Input 105
- 17.5 To Configure Alarms 106
- 17.6 To Customise Messages 107
- 3100/3200 Series 108
- 17.7 To Promote Parameters 110
- 3100/3200 Series 111
- Press 112
- 17.9 To Set up Recipes 113
- 17.9.2.1 Recipe Definition 114
- 17.9.2.3 Recipe Names 115
- 17.10 Summary 116
- 17.11 Cloning 117
- 19. Parameter Index 120
- 20. Index 122
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