Series 644 High Accuracy Pressure Transmitter

±0.05% FS, <±0.25% FS Total Error Band

The SERIES 644 Industrial Pressure Transmitter is a robust transmitter designed for high accuracy pressure applications. Boasting an accuracy of ±0.05% FS RSS (<±0.25% TEB), the 644 is intended for precise measurements in the critical applications of calibration technology, hydraulic/pneumatic controls, and many more laboratory and industrial settings. The Series 644 offers multiple measurement options with two output choices (VDC or mA) and ten psig pressure ranges (optional 0 to 15 psia). The robust and compact all stainless steel Series 644 is available with either a 1/4" male NPT, or 7/16"-20 male SAE process connections. Each transmitter is provided with an 11 point NIST traceable calibration certificate.

Product Applications

  • Calibration equipment
  • Test benches
  • Pulp and paper mills
  • Hydraulic/pneumatic controls
  • Transportation
  • Power generation

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Build Your Custom Part. Use our Product Configurator

Specifications

Service:
Compatible gases and liquids.
Wetted Materials:
17- 4 PH SS.
Accuracy:
±0.05% FS RSS.
Total Error Band (Includes all thermal effects):
<±0.25% FS over entire temperature compensated range.
Stability:
<0.15% FS/year.
Temperature Limits:
-40 to 185°F (-40 to 85°C).
Pressure Limits:
Proof pressure and burst pressure: See pressure limits table below.
Compensated Temperature Range:
-4 to 140°F (-20 to 60°C).
Power Requirements:
9 to 30 VDC for current output; 15 to 30 VDC for voltage output.
Minimum Supply Voltage:
Min. supply voltage (VDC) for current output = 9 + 0.02 x loop resistance Ω (loop resistance Ω = line resistance + receiver resistance).
Output Signal:
0 to 10 VDC (4-wire); 4 to 20 mA (2-wire).
Response Time:
<10 ms (voltage output), <80 ms (current output).
Max Current Consumption:
4 to 20 mA: 22 mA; 0 to 10 VDC: 20 mA.
Electrical Connections:
3 ft cable or 6-pin male bayonet connector.
Process Connection:
1/4" male NPT or 7/16"-20 male SAE with O-Ring.
Enclosure Rating:
NEMA 4X (IP65).
Mounting Orientation:
Vertical.
Weight:
9 oz (254 g).
Agency Approval:
CE.

Features

  • High accuracy provides exceptional measurement for insuring tight-control and minimizing costly out of specification conditions
  • Low thermal error over a wide range of temperatures helps to insure accurate pressure measurement and process operation
  • NIST calibrated to provide traceability for regulated processes where production and documentation is monitored

Accessories

Model Number Description Usually Ships* Price Order
A-495 6-pin female bayonet male connector. 3-4 Weeks $81.50 Order

Videos

Model Chart

EXAMPLE 644 L V 01 P Series 644-L-V-00-P Industrial Pressure Transmitter, 3 ft. cable, 0-10 V output, range 0 to -14.7 psig, with 1/4" male NPT connection.
SERIES 644         Industrial Pressure Transmitter
ELECTRICAL CONNECTION   L
B
      Flying Leads, 3 ft., 6-Conductor Cable Pigtail
Male 6-Pin Bayonet
SIGNAL OUTPUT     V
C
    0-10 Volts
4-20 mA
RANGE       00
01
02
03
04
05
06
07
08
09
10
11
  0-(-14.7) psig
0-15 psig
0-25 psig
0-50 psig
0-100 psig
0-150 psig
0-200 psig
0-300 psig
0-500 psig
0-750 psig
0-1000 psig
0-15 psia
PROCESS CONNECTION         P
S
1/4" Male NPT
7/16"-20 SAE Male

Product Literature

Manuals

Catalog Pages

Approvals

Drawings

Photo Downloads

You must be logged in to view this content.
Click here to login to your account.

Product Reviews

Only registered users can write reviews. Please Sign in or create an account