NoShok 627 Data sheet

Level

Intrinsically Safe Submersible Level Transmitters

SERIES627

HAZARDOUS LOCATION LIQUID LEVEL TRANSMITTERS

The NOSHOK Series 627 level transmitter combines the reliability and long
life of diffused semiconductor and sputtered thin film strain gage
sensors with safe electronics for outstanding performance and value.
These transmitters were designed for applications that require liquid level
measurement in hazardous environments. All wetted parts are made of
stainless steel welded with no internal O-rings, gaskets or seals.

These transmitters are available with a stainless steel nosecone, a
stainless steel weighted nosecone or NPT adapter and ranges to suit most
applications. All units undergo extensive testing during the manufacturing
process to ensure that the highest performance is achieved in the
demanding environments found in today’s applications. Series 627
transmitters are Factory Mutual and Canadian Standards Association
approved.

FM

APPROVED

FEATURES

I Accuracy to ±0.125 % Full

Scale (Best Fit Straight Line)

I Advanced diffused semi-

conductor and sputtered thin
film sensor for maximum
stability

APPLICATIONS

I Water and wastewater

I Chemical tanks

I Methane wells

I Marine applications

I Welded 316 stainless steel

pressure chamber

NOSHOK Model 627 transmitters are 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)

SPECIFICATIONS

Output signal 4 mA to 20 mA, 2-wire

Accuracy ±0.25 % Full Scale (Best Fit Straight Line), including the effects of

Hysteresis ≤ ±0.1 % Full Scale
Repeatability ≤ ±0.05 % Full Scale
Stability ≤ ±0.2 % Full Scale for 1 year, non-accumulating

Pressure ranges Standard ranges from 0 inH

Proof pressure 2 times range

Burst pressure 3 times range

Power supply 10 Vdc to 30 Vdc unregulated

Load limitations ≤ (VPower–10)/0.020 Amp–(0.043 Ω x length of cable in feet)

Wetted materials Housing, diaphragm and cap: 316 stainless steel

Response time ≤1 ms (between 10 % and 90 % Full Scale)

Durability >100,000,000 Full Scale cycles

Temperature ranges Compensated 32 °F to 122 °F (0 °C to 50 °C)

Environmental rating IP68, NEMA 6P continuously submersible

Electromagnetic rating Meets EMC norm EN61326: 1997/A1 1998 RFI, EMI and ESD protected

Electrical rating Reverse polarity, over-voltage and short circuit protected

Hazardous approvals Factory Mutual and Canadian Standards Association approved

Weight Approximately 7 oz. with standard nosecone - cable extra

linearity, hysteresis and repeatability; ±0.125 % Full Scale accuracy optional
for ≥ 4 psi only

Oto50inH2O through 0 psig to 350 psig

2

17-4PH stainless steel diaphragm for 0 psig to 350 psig
Cable: Fluorinated Ethylene Propylene for 0 to 50 inH
Polyurethane with Polyolefin shrink tubing for 0 psi to 200 psi through
0 psi to 350 psi

Zero effect is ±0.011 % Full Scale/°F within compensated range
Span effect is ±0.011 % Full Scale/°F within compensated range
Ambient 15 °F to 122 °F (-10 °C to 50 °C);
Media 15 °F to 175 °F (-10 °C to 60 °C);
Storage -30 °F to 175 °F (-34 °C to 60 °C)

O through 0 psi to 150 psi

2

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SERIES627

ORDERING INFORMATION

SERIES 627 FM and CSA approved liquid level transmitter

PRESSURE 0 inH
RANGES

ACCURACY 1 ±0.25 % Full Scale (Best Fit Straight Line)

OUTPUT SIGNALS 1 4 mA to 20 mA, 2-wire

PROCESS CONNECTIONS N Stainless steel nosecone W Stainless steel weighted nosecone (1.1 lbs.)

ELECTRICAL CONNECTIONS Specify length Vented polyurethane cable

Oto50inH2O 50IN 0 psig to 5 psig (11.5 ftH2O) 5 0 psig to 60 psig (138.4 ftH2O) 60

2

O to 100 inH2O 100IN 0 psig to 10 psig (23.1 ftH2O) 10 0 psig to 100 psig (230.7 ftH2O) 100

0 inH

2

0 inH

O to 150 inH2O 150IN 0 psig to 15 psig (34.6 ftH2O) 15 0 psig to 160 psig (369.1 ftH2O) 160

2

O to 250 inH2O 250IN 0 psig to 25 psig (57.7 ftH2O) 25 0 psig to 200 psig (461.3 ftH2O) 200

0 inH

2

O to 400 inH2O 400IN 0 psig to 30 psig (69.2 ftH2O) 30 0 psig to 300 psig (692.3 ftH2O) 300

0 inH

2

psig = Gauge Pressure inH2O = Inches of water ftH2O = feet of water Other ranges available on special request

2 ±0.125 % Full Scale (Best Fit Straight Line) on ≥ 4 psi only

T NPT adapter, 1/2

process connection with straight thread and O-ring seal

″ NPT male outer thread with 1/4 ″ NPT female inner thread attached to transmitter

Other cable material available on special request

0 psig to 400 psig (922.7 ftH

Please consult your local NOSHOK Distributor or NOSHOK, Inc. for availability and delivery information.

ORDERING INFORMATION
DIMENSIONS

WIRING DIAGRAMS
ELECTRICAL CONNECTIONS

O) 400

2

Outline Dimensions

2-WIRE WIRING

+ Supply Brown

+ Output Green

EXAMPLE

Series .................................627

Pressure Range ..............0psig to 350 psig

Accuracy ...................±0.25 % Full Scale

Output Signal ...................4mAto20mA

Process Connection ..................Nosecone

Electrical Connection . .300 foot cable, polyurethane

0.20″ Dia

(5mm)

5.12″

(130mm)

0.20″ Dia

0.73″

(5mm)

(18.5mm)

1.06″

(26.92mm)

627–350–1– 1–N–300

Moisture filter 612-Filter-Element
Desiccant Cartridge 612-Desiccant Cartridge
Cable Clamp 612-Cable Clamp

Weighted nosecone

G1/2

(130mm)

Optional Accessories

1.06″

(27mm)

5.12″

NPT adapter

1/2″ NPT

male

O-ring

1.06″ HEX

(27mm)

1.81″

(46mm)

1/4″ NPT

female

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