NOSHOK 625-100-1-1-2-8, 625-100A-1-1-2-8, 625-3-1-1-8-8, 625-200-1-1-2-8, 625-300-1-1-8-8 User manual

User Manual

FM

It is important that these transmitters be installed,
operated and maintained in accordance with all NEC
and applicable codes. Also, these products may not

be modied in any way. Failure to adhere to this

requirement will void the IS approval rating.

627 Series comes standard with a polyurethane jacketed
cable containing a strength member which allows it
to support the transmitter without additional supports.
Also, this cable has a vent tube which provides an
ambient pressure reference. The end of the vent tube

should be protected from moisture. If moisture nds its

way into the transmitter electronics it could adversely
affect the performance of the product.

For some applications the use of a gortex lter inserted

into the end of the vent tube will be adequate. In more
humid conditions a desiccant cartridge plugged into the

end of the vent tube is recommended. A teon jacketed

cable is available for applications that are not compatible
with the standard polyurethane material.

Wiring of all the transmitters is based upon a 4 mA
to 20 mA, 2-wire current loop. The DC power supply,
transmitter and receiving instrumentation are wired in
series. The transmitter controls the current in the loop
which is directly proportionate to the measured
pressure.

Maintenance

NOSHOK 625, 626 and 627 Series transmitters require
no maintenance. They are calibrated at the
factory using pressure standards traceable to NIST.
However, 625 and 626 Series have user accessible
zero and span potentiometers located under the top
cap. These are trimming adjustments with about
±10% adjustment capability. 627 Series is sealed
and does not have any user accessible adjustments.

PRESSURE & LEVEL

TRANSMITTERS

625, 626 and 627 Series

CORPORATE HEADQUARTERS

1010 West Bagley Road
Berea, Ohio 44017
Ph: 440.243.0888

Fax: [phone]

E-mail: [e-mail]

NUMIS 03-3

Web: www.noshok.com

Intrinsically Safe

(Factory Mutual and Canadian

Standards Association Approved)

APPROVED

NOSHOK

NOSHOK 625, 626 and 627 Series transmitters are

General

approved for use in hazardous location applications as
follows:
Intrinsically Safe, entity approval for Class I, II and III,

Division 1, Groups A, B, C, D, E, F and G; and Class I
Zone 0 Aex ia IIC

Dust Ignition-proof for Class II and III, Division 1,

Groups E, F and G

Non incendive for Class I, Division 2, Groups A, B, C
and D

FMRC 3600, 3610, 3611, 3810 (including

supplement #1), ISA-S12.0. 01, IEC 60529 (including
amendment #1)

Installation and Commissioning

625 Series pressure transmitter is connected to
the pressure source using the the threaded stainless
steel pressure port. Several pressure port sizes are
available.
626 Series pressure transmitter incorporates a
stainless steel (or optional material) diaphragm at

the end of the pressure connection, providing a ush
diaphragm conguration. It is connected to the pressure

source using the G1/2 B or G1 B threads directly or
through the use of the available weld on adapters. 627
Series is a submersible level transmitter and is suspended
by the attached cable in a tank. The hydrostatic pressure
produced by the liquid rising above the location of the
level transmitter is directly related to the actual liquid
level. Unless the metal body of the 627 Series is
grounded directly in the mounting of the transmitter,
the drain wire in the cable needs to be grounded to a
suitable system ground. It is essential to do this for the
built in noise protection to be effective.

HAZARDOUS (CLASSIFIED) LOCATION

CLASS I, ZONE O, GROUP IIC
CLASS I, DIVISION I, GROUPS A, B, C, AND D
CLASS I, DIVISION I, GROUPS E, F, AND G
CLASS I

(NOTE 2)

625, 626 and 627 Series ASSOCIATED APPARATUS

ENTITY PARAMETERS:

Vmax = 30 V, Imax = 100 mA at Tamb ≤ 85 °C, Imax = 87mA at Tamb > 85 °C , Pi = 1 W
FOR 625, 626, AND 627 SERIES: Ci = 22 nF (FLYING LEADS: + 0.2 nF/m), Li = 0.1 mH (FLYING LEADS: + 2 µH/m)

NOTES:

1. THE INTRINSIC SAFETY ENTITY CONCEPT ALLOWS THE INTERCONNECTION OF TWO INTRINSICALLY SAFE DEVICES WITH ENTITY PARAMETERS NOT SPECIFICALLY EXAMINED IN COMBINATION AS A SYSTEM WHEN: Uo OR

Voc ≤ Vmax, Io OR Isc ≤ Imax, Ca OR Co ≥ Ci + Ccable, La OR Lo ≥ Li + Lcable, Po ≤ Pi

2. DUST-TIGHT CONDUIT SEAL MUST BE USED WHEN INSTALLED IN CLASS II AND CLASS III ENVIRONMENTS

3. CONTROL EQUIPMENT CONNECTED TO THE ASSOCIATED APPARATUS MUST NOT USE OR GENERATE MORE THAN 250 Vrms OR Vdc

4. INSTALLATION SHOULD BE IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE (CEC) PART I FOR CANADA OR WITH ANSI/ISA RP12.6 “INSTALLATION OF INTRINSICALLY SAFE SYSTEMS FOR HAZARDOUS (CLASSIFIED)

LOCATIONS” AND THE NATIONAL ELECTRICAL CODE® (ANSI/NFPA70) SECTIONS 504 AND 505 FOR USA

5. THE CONFIGURATION OF ASSOCIATED APPARATUS MUST BE UNDER ENTITY CONCEPT AND - FOR THE USA - FM APPROVED

6. ASSOCIATED APPARATUS MANUFACTURER’S INSTALLATION DRAWING MUST BE FOLLOWED WHEN INSTALLING THIS EQUIPMENT

7. THE 625, 626 AND 627 SERIES ARE CERTIFIED BY CSA AND FM FOR CLASS I, ZONE 0 APPLICATIONS. IF CONNECTING Ex [ib] / AEx [ib] ASSOCIATED APPARATUS OR Ex ib I.S. APPARATUS TO THE 625, 626 AND 627 SERIES THE

I.S. CIRCUIT IS ONLY SUITABLE FOR CLASS I, ZONE I OR CLASS I, ZONE 2 AND IS NOT SUITABLE FOR CLASS I, ZONE 0 OR CLASS I, DIVISION I HAZARDOUS (CLASSIFIED) LOCATIONS

8. NO REVISION TO DRAWING WITHOUT PRIOR APPROVAL BY CSA AND/OR FM

SPECIAL CONDITION OF USE: POTENTIAL ELECTROSTATIC CHARGING HAZARD - PARTS OF THE ENCLOSURE MAY BE CONSTRUCTED FROM PLASTIC. TO PREVENT THE RISK OF ELECTROSTATIC SPARKING THE PLASTIC
SURFACE SHOULD BE CLEANED ONLY WITH A DAMP CLOTH.

NON- HAZARDOUS LOCATION

(NOTE 5)
(NOTE 6)
(NOTE 7)

CONTROL EQUIPMENT

(NOTE 3)

4 mA to 20 mA 2-Wire System

Hirschmann Cable M12 Bendix

+Supply 1 Red/Brown 1 A 1

+Output 2 Black/Green 3 B 2

Internal

Junction Box