TREND DPSL User Manual

Differential Pressure Switch (Liquid)

Important: Retain these instructions

INSTALLATION

Installation Instructions

DPSL

1

65mm (2.56”)

c

Dimensions

Access for
screws

(0.51”)

13mm

(0.51”)

13mm

140mm (5.51”)

118mm (4.65”)

29mm

(1.14”)

120mm (4.72”)

18.8mm
(0.74”)

2

Requirements

a

b liquid

air

d

-10 °C +80 °C

(14 °F) (176 °F)

DPSL Differential Pressure Switch (Liquid) Installation Instructions TG101762 Issue 4 02/04/08

1

DPSL Installation Instructions

Mounting

3

∅ 5.2 mm
(0.2”)

40 mm (1.57”)

60 mm (2.36”)

4 5

6

top view ­lid removed

Remove Cover

Connect to Controller

2

1

3

2

1

3

Insert Cable

Using PG11 cable gland

IQ1xx/2xx

IN

Digital Input Channel

COM

D

Amp tag 6.3 mm or push on
screw terminals supplied

2

IQ3

2
1

3

DPSL Differential Pressure Switch (Liquid) Installation Instructions TG101762 Issue 4 02/04/08

0 (0V)
N (IN)
+ (+24V)

Installation Instructions DPSL

1

2

3

7

Requirements

a

c

d

ΔP < = 10000 mbar

b

+

-

P1

P1>P2

P2

[P1<P2 ✘]

,

P

-10 °C
(14 °F)

+80 °C
(176 °F)

,

P

P1P2

(DPSL/L)

20000 mbar

(DPSL/H)

8

9

G1/8” (DIN259),

1

/8” (BSP)

female thread

Pressure Connections

over pressure under

+

-

Connect Pressure

+

differential

pressure

pressure

+

-

+

-

ΔP

10

P1

P2

Screws Not to be Adjusted

-

DPSL Differential Pressure Switch (Liquid) Installation Instructions TG101762 Issue 4 02/04/08

3

DPSL Installation Instructions

11

12

Adjust Switch Point

P1

Δ p

P2

Adjust Hysteresis

2

1

3

13

Secure Screws

V A R N I S H

,

p

2

1

3

V A R N I S H

14

DISPOSAL

Replace Cover

Do not dispose of with normal household waste.
Do not burn.

,

p

15

16

Configure IQ

IQ Configuration
Manual 90-1533

Test

WEEE Directive :

At the end of their useful life the packaging and
product, should be disposed of via a suitable
recycling centre.

I Q

I Q

or

ΔP = ‘ON’

IQ

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© 2008 Honeywell Technologies Sàrl, ECC Divison. All rights reserved. Manufactured for and on behalf of the Environmental and Combustion Controls
Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative.
Trend Control Systems Limited reserves the right to revise this publication from time to time and make changes to the content hereof without
obligation to notify any person of such revisions or changes.

Trend Control Systems Limited

P.O. Box 34, Horsham, West Sussex, RH12 2YF, UK. Tel:[phone] Fax:[phone] www.trend-controls.com

Trend Control Systems USA

6670 185th Avenue NE, Redmond, Washington 98052, USA. Tel: [phone], Fax: [phone] www.trend-controls.com

4

DPSL Differential Pressure Switch (Liquid) Installation Instructions TG101762 Issue 4 02/04/08