Setra Local Display
Model LD330
Installation and Operating Instructions.
Setra’s Model LD330 is a small local display designed for convenient
in-line installation. It can be used with voltage output and current output tranducers 4-pin bayonet connectors (which meet dimensional requirements of MIL-C-26482 and the MIL STD 3116) Amp jack, 15 Pin and
9 Pin D-Sub connectors.
1.0 INSTALLATION
The LD330 can be supplied with a variety of integral electrical connectors to connect to the mating connectors on the transducer. Consult part number chart below to determine the proper configuration. For setting optimum viewing angle, the LD330 display housing can rotate, at least 270 degrees, with respect to the connector. DO NOT ATTEMPT TO FORCE ROTATIONAL ADJUSTMENT BEYOND STOP POSITION.
The LD330 is available in a variety of configurations.
2.0 ELECTRICAL CONNECTIONS
The LD330 can be supplied with different style connectors to the input transducer and to the power supply. The power supply can be supplied with cable, also. Confirm the electrical connection supplied , and refer to the appropriate column below for
proper connections.
2.1 Voltage Units
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9 PIN |
15 PIN |
5 PIN |
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CABLE |
BAYONET |
D-SUB |
D-SUB |
MINI-DIN |
MOLEX |
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CONNECTION |
WIRE |
PIN |
PIN |
PIN |
PIN |
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+ EXCITATION |
RED |
A |
4 |
7 |
1 |
2 |
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+ OUTPUT |
GREEN |
B |
1 |
2 |
2 |
1 |
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– OUTPUT |
WHITE |
C |
8 |
12 |
4 |
4 |
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– EXCITATION |
BLACK |
D |
9 |
5 |
5 |
5 |
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CASE GND |
DRAIN |
SHELL |
SHELL |
SHELL |
3 |
6 |
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2.2 Current Units
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9 PIN |
15 PIN |
5 PIN |
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CABLE |
BAYONET |
D-SUB |
D-SUB |
MINI-DIN |
MOLEX |
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CONNECTION |
WIRE |
PIN |
PIN |
PIN |
PIN |
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+ EXCITATION |
RED |
A |
4 |
7 |
1 |
2 |
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– EXCITATION |
BLACK |
D & B |
9 |
5 |
4 |
5 |
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CASE GND |
DRAIN |
SHELL |
SHELL |
SHELL |
3 |
6 |
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1
3.0PANEL-MOUNT CONFIGURATION
If the panel-mount configuration is supplied, see Figure 1 for cut-out dimensions. Insert the panel-mount display through the front and secure to the panel with four mounting screws (not supplied).
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1.00 |
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ø0.15 |
1.55 |
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3.81 |
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25.4 |
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39.37 |
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1.73 |
Cut Out |
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2.25 |
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1.88 |
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57.2 |
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47.8 |
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43.18 |
Dimensions |
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1.65 |
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41.9 |
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Figure 1 |
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4.0 CALIBRATION
The LD330 is factory calibrated to display engineering units. The multi-turn pots on the front face are for zero and span display adjustment. Setra recommends that the zero adjustments be done using the transducer zero potentiometer whenever possible. The display zero potentiometer should only be used for minor adjustments. Never adjust the span potentiometer unless proper calibration equipment is used and proper calibration procedures are followed.
4.1 Zero & Sensitivity Adjustment
The zero and sensitivity (span) potentiometer are located on the front of the unit just under the digital display. Remove the protective plugs to access the potentiometers.
1.Apply zero pressure to the transducer and adjust the LD330's zero potentiometer if the LD330 does not display "0".
Note: For a compound range (eg -14.7 to 100 psig unit) apply "0" psig pressure to
the transducer and adjust the LD330 zero potentiometer until the display is "0". Do not apply -14.7 psig and attempt to adjust the display to "-14.7".
2.Apply full scale output to the transducer/transmitter and adjust the span potentiometer on the LD330 if the LD330 does not display the correct value. If the adjust-
ment seems sensitive verify that the LD330 is the correct range for your transducer. Repeat steps 1 and 2 as necessary.
4.2 Decimal Points
The LD330 decimal point is factory set to custom specified range. Figure 2 below shows the jumper settings
To access this jumper, LD330 housing and remove the back cover. Remove jumper if decimal point is not required.
4.3 Backlighting
The LD330V comes standard with green
backlighting. LD330C is not Figure 2
offered with backlighting. To disable backlighting of LD330V, remove the Back Light Jumper shown in figure below.
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