NoShok 1000 Operating Manual

1000 Series

Piston Type Di󰀨erential Pressure Gauges

Electrical Installation and Operating Instructions

1. Safety

Before installing, check the Series Number and verify
compatibility to the process media and temperature in
contact with the wetted parts. Incompatible media and /
or operation at temperature extremes can cause
premature degradation of materials which could result in
safety risk to personnel.

Verify the selected pressure range (di󰀨erential pressure and working
pressure) and the switch ratings are within specication for your
application.

Perform all electrical adjustments with power removed.

The 1000 Series Di󰀨erential Pressure Gauge utilizes a piston design which inherently has a small amount of
leakage from high process connection to low process (15 SCFH air max at 100 PSID) connection. Do not use
this product in an application with the low side process connection left open to atmosphere.

This product utilizes a magnet as part of the sensing element. Magnet particles in the process, can cause the
piston to stick or become wedged in the bore.

Warning!
Remaining media may result in a risk to personnel, environment etc. Use sucient
precautionary measures when removing and transporting the product.

1.1 Intended use

The indicating / non-indicating di󰀨erential pressure switches are used for monitoring di󰀨erential pressures in
industrial applications.

The manufacturer shall not be liable for any claims if the product is used in applications contrary to the
intended use.

1.2 Personnel

Personnel installing and putting this instrumentation into service shall be suitably trained and qualied in ac­cordance with local codes, practices and regulations.

1.3 Labeling / Marking

The following Electrical Congurations bear this mark and comply with the relevant European
Directives identied on the declaration of conformity: All NOSHOK 1000 Series Di󰀨erential Pressure
Gauges with single and dual switching (Switch options 1-6 in ordering information).

NOSHOK, Inc. I 1010 West Bagley Road, Berea, OH 44017 I Ph: 440-243-0888 I Fax [phone] I www.noshok.com

NOSHOK 1000 Series Piston Type Di󰀨erential Pressure Gauges

Electrical Installation and Operating Instructions

2.0 General Specications

Working Pressure(PSI)

Proof Pressure(PSI)

Di󰀨erential Pressure

Indicator Accuracy

Parameter Limits

3000 (AL)
6000 (SS)

12,000 (AL)

20,000(SS)

Temperature -40 °F to 200 °F

Range (PSID)

ASME B40.100

DP Over-Range +/- Proof pressure

0-5 to 0 to 110

2%

Switch Specication

Parameter SPDT

*Power 3W
Max. Current 0.25 Amps
Max. Voltage

VAC/VDC

**Setting ( %F.S.) 10 to 90

Hysterisis

(Max/Nom)

Repeatability 1% F.S.

**Leads 22 Awg. (3), 24”

* Product of the switching voltage and current shall not exceed the power rating of the device.
** Except where otherwise noted

3.0 Product Description

Di󰀨erential pressure is sensed by the movement of a oating piston magnet against a calibrated spring. The
magnetically coupled gauge pointer located outside the pressure housing follows the movement of the piston
magnet and indicates di󰀨erential pressure on the dial. The switches are also magnetically operated and are
located outside of the pressure housing. The switches are mechanically adjustable allowing the customer to
set the switch within a dened adjustment span of the range of the instrument.

125

10% / 5% F.S.

This instrument is mainly intended for gas / air / oil applications.

NOSHOK, Inc. I 1010 West Bagley Road, Berea, OH 44017 I Ph: 440-243-0888 I Fax [phone] I www.noshok.com

NOSHOK 1000 Series Piston Type Di󰀨erential Pressure Gauges

Electrical Installation and Operating Instructions

4.0 Installation

Mechanical Connections

¼” FNPT are provided standard, however check your paperwork to conrm the connections ordered. There
are 2 connections identied on the gauge body as “Hi” and “Lo” for High pressure and Low pressure respec­tively. Be sure these are plumbed properly in your system. Improper connection will not damage the instru­ment, but it will not function properly.

Do not allow gauge ttings to rotate when making process connections. Calibration and / or

pressure rating of the product may be compromised.

For end connected or gauges supplied with adapter ttings use two wrenches when making connections. Use
one wrench to hold the pressure port tting on the gauge and the other to tighten the process pipe of tube t­ting.

Instrument Location

On liquid service the instrument should be mounted below the process connections to facilitate self-bleeding.
On gas service it should be located above the process connections to promote self-draining. If the process
contains particulates, a pigtail loop or drop leg (manometer “U-tube” conguration) in the tubing will minimize
the possibility of it migrating into the instrument.

Temperature Limitations

For process temperatures higher than the rated temperature of the DP gauge / switch, use process tubing to
reduce the temperature. A general “ rule of thumb” is that for horizontal tubing runs the temp drop is 100° F/ ft.
Another option is to use “cooling towers” to protect the instrument.

Verify the selected elastomer option is appropriate for your operating temperature.

Wall / Pipe/ Panel Mounting

Not all combination of options can be wall, pipe, or panel mounted. If your unit is supplied with a wall or panel
mount, possible congurations are shown below:

Wall Mount Congurations:

NOSHOK, Inc. I 1010 West Bagley Road, Berea, OH 44017 I Ph: 440-243-0888 I Fax [phone] I www.noshok.com