Nagman PHP 10 User manual

Nagman®
PNEUMATIC HAND PUMP
PHP 10 / 20 / 25 / 35 / 40

NAG/IM/PHP 10-40/01/22 2
BRIEF PROFILE
An ISO 9001-2015 certified Instrumentation company
(since 1972) serving Industries in India & Worldwide thro’ the
Manufacture & Supply of World-Class Calibration
Instruments & Systems like Temperature, Pressure & Signal
Calibrators, Black Body Calibration Sources, Pneumatic &
Hydraulic Hand Pumps, Dead Weight & Comparison Testers,
Calibration Test Benches, etc.

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Dear User,
Thank you for selecting Nagman’s Pneumatic
Hand Pump and becoming a proud owner of
this Calibration Instrument.
We have strived hard to ensure the accuracy
of the contents of this manual. We would
appreciate any suggestions/feedback to
correct any errors noticed and to improve
the quality of contents of this Manual
Specifications are subject to change owing to
continuous development and we reserve
rights to effect Changes / Modifications to
this Manual.
Read the Instructions before starting to use
the Product.
Wishing you for a long association with us.
For any service related issues, please contact
[email protected]
VERSION CONTROL
Version No. Updated on Updated by
V 1.1 01.09.2022 Nagman

NAG/IM/PHP 10-40/01/22 4
CONTENTS
S.No. Description Page No.
1. Introduction …………………………………………………………..5
2. Specification…………………………………………………………….6
3. Standard Delivery & Optional Accessories ……………7
4. Parts Identification …………………………………………………8
5. Functional Description ………………………………………….…9
6. Connection Diagram ………………………………………….…10
7. Safety Instructions ….…………………………………………….11
8. Operation – Pressure / Vacuum ……….…………………….13
9. Troubleshooting / Maintenance……………………………..14

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1. INTRODUCTION
Nagman’s calibration hand pump is designed to manually
generate pressure between -0.90 upto 10/25/35/40 bar
(depending upon models) of vacuum and pressure for quick
and accurate calibration of pressure gauges and other
pressure measuring Instruments.
This pump is manufactured with high quality components for
calibrating Analog / Digital gauges by comparison method. It
can be used for lab and field applications.
There is a pressure / vacuum changeover switch in the pump,
which is used for selecting either vacuum or pressure output.
It is fitted with a fine Adjustment valve and a Release valve.
The output pressure / vacuum of the hand pump can be
adjusted precisely by the fine Adjustment valve while
calibration. Release valve is used for releasing the pressure /
vacuum after calibration.
The output pressure / vacuum of the pump is in the range of:
-0.9 vacuum to 10 / 20 / 25 / 35 / 40 bar pressure depending
upon the model.
Model
Range
PHP 10
-
0
.90 to 10 bar
PHP 20
-
0
.90 to 20 bar
PHP 25
-
0
.90 to 25 bar
PHP 35
-
0
.90 to 35 bar
PHP 40
-
0
.90 to 40 bar

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2. SPECIFICATION
Range -0.90 bar Vacuum to 10 / 25 / 35 /
40 bar Pressure
Medium Air
Sensitivity / Resolution Upto 1 mbar
Gauge / Indicator
Connection Port
3/8” (F) BSP
Test Connection Port 1/4" (F) BSP
Stabilization time 1-2 minutes
Instrument Dimension 230 x 140 x 65 mm (L x B x H)
Instrument Weight
(approx.)
750 gms.

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3. STANDARD DELIVERY & OPTIONAL ACCESSORIES
Standard Delivery
 Basic Pump
 Nylon Hose (1 Meter) with Swivel Adaptor (1/4” BSP
(F))
 Plastic Caps (2 Nos.) for Dust Protection
 Seals kit consisting of Nylon washers 3/8” (F) (2
Nos.); 1/4” (F) (2 Nos.)
 Conformance Certificate
 Instruction Manual
Optional Accessories
 Carrying Case (Soft/Hard)
 Analog / Digital Pressure Gauges
 Quick Connector
 Spare Seals Kit
 Set of Adaptors
⅛” BSP(F) X ¼” BSP (M)
½” BSP(F) X ¼” BSP (M) BSP
⅜” BSP(F) X ¼” BSP (M)
⅛” NPT(F) X ¼” BSP (M)
¼” NPT(F) X ¼” BSP (M) NPT
½” NPT(F) X ¼” BSP (M)
⅜” NPT(F) X ¼” BSP (M)

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4. PARTS IDENTIFICATION
1) Pump Handles
2) Knurling Thumb Nut
3) Pressure Release Valve
4) Fine Adjustment Valve
5) Pressure / Vacuum selector
6) Quick-Fit “ Connector - ¼” BSP (F) (Swivel Adaptor)
7) Nylon Washer ¼”
8) Plastic Plug
9) Flexible hose to connect unit under test (UUT)
10) Pressure Port – 3/8" BSP Female Connection to Connect
Master Instrument
11) Nylon Washer 3/8”

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5. FUNCTIONAL DESCRIPTION
Pressure Release Valve (3):
Used to reduce or release the vacuum /
pressure in the system. Minimal force is
required to seal the system.
Fine Adjustment Valve (4):
The vacuum / pressure can be finely adjusted
by turning this fine adjustment valve either
clockwise or anticlockwise to increase or
decrease pressure accordingly.
Pressure or Vacuum Selector (5):
Press the selector as indicated in Figure 1 to
engage the desired mode. Ensure that the
release valve is closed firmly (clockwise
motion) prior to pumping.
Knurling Thumb Nut (2) (Over Pressure
Protection):
To adjust maximum output pressure of the
pump turn the knurling thumb nuts (2) to
increase or decrease the stroke length so
that the maximum pressure is controlled per
stroke.

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6. CONNECTION DIAGRAM
1. Master / Reference Measurement
2. Unit Under Test

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7. SAFETY INSTRUCTIONS
S. No. Symbol Description
1 Read the user manual before
operating the instrument.
2 Warning - conditions that may
pose hazards to the user.
3
Caution-conditions that may
damage the instrument.
4
Special Information

NAG/IM/PHP 10-40/01/22 12

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8. OPERATION – PRESSURE / VACUUM
 Connect the Master / Test Instrument using the
appropriate adaptor and seals to the pressure port at
the end of the flexible hose (6) or directly to the
pressure port on the body (10) using appropriate
adaptor.
 Open the fine adjustment valve (4) in anticlockwise
direction until Red mark appears.
 Ensure the pressure release valve (3) needle
tightened in clock wise direction.
 Pressure / Vacuum calibration can be selected by
Pressure / Vacuum selector (5).
 Generate Pressure / Vacuum by squeezing the pump
Handles (1) together. Ensure that the handles are
fully squeezed together on each stroke to achieve
maximum pressure / vacuum output.
 The Output pressure / vacuum can be adjusted using
the fine adjustment valve (4) for achieving precise
Pressure / Vacuum.
 After calibration is completed, open the Release
valve gradually in anticlockwise direction to remove
pressure / vacuum before disassembling the
measurement system (Master / Test Instrument).
 Remove the master and the test instrument from the
pump.

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9. TROUBLESHOOTING / MAINTENANCE
If there is no pressure indication in the Master / Test
Instrument even after considerable pumping action of the
handle, check the following:
 Ensure that the connections between the pump, the
hose end and the Test / Master Instrument(s) are
tight and then retry pumping.
 Check that the Release Valve is closed.
 Check whether the Pressure / Vacuum selector is left
half way in between pressure side & vacuum side. If
so, push it firmly in place (either vacuum or pressure
side) as needed.
Chances are there that one of the seals in the PHP is leaking
and needs to be replaced, if the applied pressure still cannot
be obtained.
If functionality of Hand Pump is not normal, please do not
Continue Pumping.

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Returning Instrument for Service
When returning the instrument to the manufacturer for
service, please provide complete information about the
problems faced for clear analysis of the problem. The
calibrator should be returned in the original packing.
Nagman‘s liability ceases if :
 Parts are replaced / repaired using spare parts which are
not identical to those recommended by the
manufacturer.
Nagman‘s liability is restricted to errors that originated from
the factory.
For more details, write to :
NAGMAN INSTRUMENTS AND ELECTRONICS
PRIVATE LIMITED
170/1a2, Chennai Bangalore Highway Road,
Sembarambakkam, Chennai - 600 123. INDIA.
Phone:
[phone], 0
11,
0
22,
0 33
Email:
[email protected]
W
ebsite : www.nagman.com