Ariens Path-Pro 136E User Manual Page 66
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Process Field
Calibration
Procedure
Figure 39
-
Voltage/Current
Source to Series 920
Connection
Diagram
Equipment Required
l
4-1/2
digit, digital voltmeter (DVM).
l
Precision voltage/current source.
Set-up and Calibration
J
NOTE:
Before calibration on an installed control, make sure all data and parame-
ters are documented.
1.
Connect the voltage/current source to
#4
Positive and
#5
Negative on the
Series 920 terminal strip. See the figure below.
Series 920
Terminal Strip
Voltage/Current
Source
2.
3.
4.
5.
6.
7.
8.
9.
,
.
Connect AC line voltage, L1 to
#17,
L2 to
#20,
ground to
#21
on the Series
920 terminal strip.
Set DIP switch
#8
ON. Apply power to the 920 and allow it to warm up for
15
minutes. The unit should be in the TEST mode.
Using the MODE key, advance until the IN
X
parameter appears on the
alphanumeric display. Using the UP/DOWN keys, advance to the correct
input type. Press the ENTER key.
Connect DVM common to TP84 and DVM positive to TP36 on the
AOO7-
1703 circuit board. Located on the top side behind the center chassis
support. DVM should be set up for DC volts, and in a range capable of
displaying 32.00 ± 10mv.
Press the MODE key until HOF
XX.XX
appears on the
alphanumeric dis-
play. (The decimal point will not appear on the display of your control.)
Use the UP/DOWN keys to adjust the alphanumeric display on the 920 to
match the reading on the DVM. Once the two readings match, press the
ENTER key.
Press the MODE key until MA2 XXXX appears.
Input 0 volts for a
0-5
volt
input type, or 4mA for a
4-20mA
input type. Press the ENTER key.
Allow
10 seconds for the unit to stabilize.
Press the MODE key until MAG
XXXX
appears. Inpuy 5 volts for a 0-5 volt
input type, or 20mA for a
4-20mA
input type. Press the ENTER key. The
unit is now calibrated for process inputs. Allow 10 seconds to stabilize.
The process reading on the ACTUAL display should be sitting at the RAH
setting.
Remove power for the Series 920. Remove wires from
#4
and
#5.
Set DIP
Switch
#8
to the OFF position.
66
WATLOW Series 920 User’s
Manual
Appendix
- Series 920 1
- Safety Information 2
- Your Program 3
- Contents 4
- Figures, Tables and Charts 5
- Chapter 1 6
- Starting out with the 6
- Watlow Series 920: 6
- Packing List 7
- How to Open the 920 8
- How to Set the DIP Switches 8
- User’s Manual 9
- Operating 10
- Chapter 11
- Keyboard Area 13
- Where To Go From Here 13
- A Brief Overview 14
- Enter Real Time of Day 14
- Before Entering Your Program 15
- Programming. File 1 15
- Step 4 must be 16
- Editing Your Program 17
- Adding an AUTOSTART Step Type 17
- Running Your Series 920 19
- Chapter 4 20
- How to Check for Ground Loops 22
- Noise Suppression Devices 22
- Available from Watlow 22
- C.M.Line Filter 23
- Installation Information 24
- Installation Procedure 24
- How to Wire the Series 920 25
- Power Wiring 26
- T.C. Compensation 27
- Load from 30
- Temperature Conrol 32
- How to Tune the Series 920 33
- Series 920 User’s 34
- Chapter 6 36
- How To Program The Series 920 36
- Event Outputs 37
- Guaranteed Soak 37
- The Four 38
- JUMPLOOP 38
- Rules to Follow 39
- SYSTEM Menu 40
- .:.:.:.: 41
- SETUP Menu 42
- Represents the 45
- PROGRAM Menu 49
- StepType 50
- To Program 52
- 920, Chapter 6 52
- Chart I- Master Step Chart 53
- Chapter 7 54
- Alarm Types 55
- The Operating Band 56
- Alarm Limits 57
- Clearing An Alarm Message 58
- An Alarm And The State 58
- The Alarm Relay 58
- Appendix 59
- Series 920 Specifications 59
- 920 User’s Manual 60
- 61
- Type J, K, or T 62
- Reference Compen 62
- Equipment Required 63
- Setup and Calibration 63
- @)(sJ(g; 64
- Glossary 67
- Accepts the sensor input and 68
- Isolation: 70
- ON/OFF control: 71
- WATLOW Series 920 73
- Manual 73
- Thermal System: 74
- Safety Information, 2 76
- Warranty Information 77
- Returning Merchandise 77
- Shipping Claims 77
- Series 920 Error Codes/Alarms 78
- Clearing an Error Code 79
- How to Clear an Alarm Code 79
- Series 920 Quick 80
- Reference 80
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