CLA-VAL X117D Installation

Refer to calibration equipment and adjust transmitter potentiometer
marked "NULL" until the meter reads 4 mA. A clockwise turn
increases output. Use care in adjusting the potentiometer while
turning the screwdriver.
5. For the most accurate calibration it is necessary to open valve
fully. CAUTION: This will either allow a high flow rate through the
valve, or the downstream pressure will quickly increase to the
inlet pressure. In some cases, this can be very harmful. Where
this is the case, and there are no block valves in the system to
protect the downstream piping, it should be realized that steps
should be taken to remedy this situation before proceeding further.
Normally, block valves are to be used to protect downstream piping
while the valve is in the open position. Close downstream block
valve. Vent cover chamber to atmosphere. Slightly open inlet
block valve. Allow valve to open while fluid is vented from cover
chamber. When flow stops valve is in the fully open position.
Note: continuous leakage from cover chamber could mean additional
troubleshooting of the main valve or pilot system must be done.
6. With valve in fully open position, inspect position of wire rope
and nut coupler. (See Step 3). Adjust if necessary.
Coupler gap is set with valve in fully closed position. This establishes the minimum
mechanical position for 4 mA output.
ADJUSTMENT: Zero and span adjustments allow setting the 4 mA position (valve
closed) within 0% to 30% of total transmitter range and setting the 20 mA position
(valve fully open) within 80% to 100% of total transmitter range.
X117D
Part Number
20000019F
20000019F
20000020A
20000020A
20000021A
20000001A
20000002A
20000003A
20000004A
20000005A
20000006A
20000007K
20000008J
CLA-VAL
P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com
©
Copyright Cla-Val 2005 Printed in USA Specifications subject to change without notice.
GAP
Valve Size (inch)
Valve Stem
100-01 100-20 Travel (inch)
1 1/4 0.400
1 1/2 0.490
2 3 0.590
2 1/2
0.714
3 0.835
4 6 1.109
6 8 1.584
8 10 2.242
10 12 2.711
12 16
3.343
14 N/A 3.920
16 20 & 24 4.584
24 N/A 6.504
Nominal
Refer to calibration equipment (see Step 4) and adjust potentiometer
marked "SPAN" until the meter reads 20 mA. A clockwise turn
increases output. Use care in adjusting the potentiometer while
turning the screwdriver.
7. There is some interplay between:
1.) the "span" and "null" settings,
2.) the 4 to 20 mA signal and,
3.) the actual valve open and closed positions.
Repeat steps 4-6 above. Cycle valve from open to closed posi-
tions and check settings as necessary to achieve desired valve
position signal accuracy.
8. Remove all calibration equipment and attach permanent
Wiring. Recheck wiring and output signals at remote location.
See Wiring section. Reinstall two cover screws on housing.
Recheck and tighten all fasteners. Bleed air from main valve
cover through small bleed screw and washer located on one
wrench flat of adapter.

MAINTENANCE

The X117D is constructed of durable materials which normally
requiring no lubrication or periodic maintenance. The two 'O' rings
(2) (p/n 00951E) in the adapter (5) that seal against the stainless
steel actuating stem (1) will need replacement if signs of leakage
at the stem occur.
+
Red
—
1200
1000
800
600
400
200
"GAP"
Coupler Transmitter
Total
Setting
Range
GAP (inch)
3/16" 1"
3/16" 1"
1"
1/8"
1"
1/16"
1"
1/16"
9/16" 2"
3/16" 2"
7/16" 3"
3"
1/8"
4"
5/16"
5"
9/16"
3/16" 5"
2 1/4" 10"
Minimum
M
Black
Meter
1150 OHMS
OPERATING ZONE
12V
0
0 10 15 20 25 30
SUPPLY VOLTAGE, V
N-X117D (R-8/05)
12 to
+
35 VDC
_
35