Martel Electronics BETA LDT-500 User Manual

BETA LDT-500

Dirt/Moisture Trap

with Precision Vent

Operating Instructions

Warning: The LDT-500 is designed for use

with Pneumatic Systems Only!

Pressure Connection:

Outlet: 1/8" NPT Male Thread with O-Ring seal
Inlet: Universal 1/8" NPT Female or 1/8" BSP Female Thread

Maximum Working Pressure:

500 psi/35 bar.

Orientation:

The LDT-500 is designed to be used vertically and should

be removed from the calibrator when not in use.

Media Compatibility:

Electroless Nickel over brass, Acrylic, Cast Urethane and Nitrile (Buna-N)

O-Ring seals.

Operation:

1. Fit the LDT-500 to the test port of the calibrator,
hand tighten only, the o-ring at the base of the
1/8" NPT male thread will make a proper seal.
Try to orient the LDT-500 so that the vent con­trol is in position to allow ease of use.

2. Connect the equipment under test to the upper
port on the LDT-500, using a suitable sealing
method. Use a 7/8" or 23mm back up wrench
on the hex section nearest the upper port when
connecting to the LDT-500 inlet.

3. When you are ready to operate the calibrator
make sure to close the vent on the LDT-500
and the vent on the calibrator. When using the
LDT-500 the vent knob on the calibrator can remain in the closed position. All
venting should be done using the vent on the LDT-500 to prevent liquids
from entering the calibrator.

7/8" or 23mm
back up wrench

4. If moisture or dirt particles are seen within the clear chamber during
use, dismantle and clean the trap.

Cleaning/Assembly:

1. Unscrew the top section of the LDT-500 then remove the clear acrylic
chamber and the two o-rings.

2. Clean and dry the internal components with a clean cloth. DO NOT USE
SOLVENTS on the clear acrylic chamber as damage may occur.

3. Before reassembly inspect the clear acrylic chamber, external and inter­nal o-rings for wear or damage and repair by ordering replacement
parts. Do not reuse worn or damaged parts.

4. Before assembly lightly lubricate the two internal o-rings with Dow 111,
or silicone grease and then reassemble the LDT-500 properly. Hand
tighten only.

www.martelcorp.com • e-mail: [e-mail]

0219872 Rev B 12/11

Martel Electronics Corporation

3 Corporate Park Drive, Unit # 1

Derry, NH 03038

Tel: [phone] • 800-821-0023

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