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One


Unique I AM WORKING function
The One Series provides a continuous indication of its health AND the switch output status, both locally and remotely. An LED on the front panel and a discrete logic output signal are used to communicate three states:

  • I AM WORKING but I Have Not Switched
  • I AM WORKING and I Have Switched
  • I Am Not Working
The One Series I AM WORKING feature diagnoses the health of the sensor, software, microprocessor and power supply. And it does all this on a continuous basis. Used in conjunction with the standard switch output, the I AM WORKING signal can even help satisfy many DPDT requirements. Functions of the
I AM WORKING
signal are as follows:

Signal
Interpretation
I AM WORKING output "On" continuously
Normal operation, unit operating properly
I AM WORKING output pulsed "On" and "Off"
Beyond set point, unit operating properly
I AM WORKING output "Off"
Loss of power or unit inoperable

100% Set point and deadband adjustment
Set point and deadband values are adjustable over the full range span using a convenient, simple to operate, front panel keypad. Access to the programming mode requires a simple, yet tamperproof, keying sequence... It's better than password protection!

Process variable extremes stored in non-volatile memory
System pressure or temperature extremes are retained in the One Series' non- volatile memory, assisting in troubleshooting problems. The One Series captures high and low pressure or temperature extremes constantly.

Unique switch operating mode
The One Series provides four convenient switch operating modes which determine the function of the switch output, deadband, LED status indicator and I AM WORKING signal. The desired switch operating mode can be selected from one of four options:

  • High Limit Alarm - Close on Rise
  • High Limit Shutdown - Open on Rise
  • Low Limit Alarm - Close on Fall
  • Low Limit Shutdown - Open on Fall
Excellent media compatibility
Pressure: Wetted materials include a 316 stainless steel pressure connection, ceramic pressure sensor and your choice of O-ring material. The piezoresistive ceramic sensor is compatible with most media except a few aggressive acids. Temperature: 304 stainless steel sensor housing.


Patent Pending
(Specifications at 25C and nominal voltage unless otherwise noted)

Mechanical:
Enclosure Specifications:
Die cast aluminum epoxy powder coated; NEMA 4X (except "R" temperature models. "R" models are weather tight but do not carry a specific NEMA rating.)
Pressure Ranges:
0 to 4000 psi. See Model Charts
Wetted Materials:
Process connection: 316 stainless steel

Sensor: Ceramic (96% Alumina)

O-Ring: Viton is standard. See How To Order for other materials

Temperature Ranges:
-45.6 537.8C. See Model Charts
Sensor Housing:
304 stainless steel
Extension Wire:
Model H: MI extension wire: 0.125" OD x 6, 10 or 20' long

Model R: Teflon jacketed cable, Teflon coated leads with stainless steel over braid, 6', 10' or 20' long

Weight:
Single enclosure units: 0,8 kg
dual enclosure units: 1,1 kg
Shock:
MIL-STD-810E, Method 516.4; 10 mSec @ 15 g's, 6 mSec @ 40 g's; 3 times each axis
Vibration:
MIL-STD-810E, Method 514.4; 10-2000 Hz @ 0.04 PSD (equates to 8 g's @ 2000 Hz)

Electrical:
Conduit Connections:
Single enclosure (switch rating A): 1/2" NPT female sealed conduit connection

Dual enclosure (switch rating B and C): 1/2" NPT female conduit connection. Optional dual 1/2" NPT female conduit connections

Dual enclosure (switch rating D): dual 1/2" NPT female conduit connections

Electrical Connection:
Single enclosure (switch rating A): 1 meter wire harness, 20 AWG, PVC jacketed, shielded cable

Dual enclosure (switch rating B and C): terminal block, accomodates 20 to 14 AWG conductors

Dual enclosure (switch rating D): separate terminal blocks for high and low voltage signals, accomodates 22 to 14 AWG conductors

Power Source:
24 VDC nominal; 18 to 30 VDC, 100 mA maximum (surge protected);
optional 115 VAC nominal, 10%
Switched Output:
Switch rating A & B: 100 mA @ 5 to 30 VDC, SPST MOSFET, open drain (collector) sinking output, short circuit protected

Off state leakage current 10 A @ 30 VDC, fail safe "open"

Switch rating C: 15 Amp @ 24-280 VAC, SPST, solid-state relay; minimum load current is 150 mA

Off state leakage current 0.1 mA @ 280 VAC, fail safe "open"

Switch rating D: 5 Amps @ 115 VAC. SPST, solid state relay minimum load current is 150 mA.

Off state leakage current is 0.1 mA @ 115 VAC, fail safe "open"

I AM WORKING Output:
100 mA @ 5 to 30 VDC, MOSFET, open drain (collector) sinking output, short circuit protected

SPST off state leakage current 10 A @ 30 VDC, fail safe "open"

Optional Analog Output:
4-20 sourcing output, non-isolated, proportional to sensor input range, load resistance 500W maximum
EMI/RFI:
Complies with CE EMC requirements EN50081-1, EN50082-2 (switch rating B and C only)
Emission:
Conducted emission EN55011 class A; Radiated emission EN55011 class A
Immunity:
Electrostatic discharge EN61000-4-2; Conducted disturbances (RF) acc. IEC 1000-4-6

Radiated E-fields (RF) acc IEC 1000-4-3, acc ENV50204

Surge withstanding IEC 1000-4-5; Transient withstanding EN 61000-4-4

Operating:
Pressure Ranges:
See Model Charts
Temperature Ranges:
See Model Charts
Set Point:
Adjustable over the full range span. See Model Charts
Deadband:
Adjustable over the full range span. See Model Charts
Maximum Over Range:
See Model Charts. N/A for temperature ranges
Burst Pressure:
See Model Charts. N/A for temperature ranges
Set Point Repeatability:
0.2% of maximum range value
Accuracy:
Switch point/indication: 1.0% of maximum range

Analog output: 1.0% of maximum range

Media Temperature Effects:
1.0% of maximum range from 32 to 158F (0 to 70C)
Long-Term Stability:
0.25% of range per year, maximum
Switch Response Time:
25 mSec typically, 200 mSec maximum

General Features:
Ambient Temperature:
Operating: -22 to 158F (-30 to 70C)

Storage: -22 to 176F (-30 to 80C)

Media Temperature For Temperature Models:
Limited by O-ring material. See How to Order
Media Temperature For Temperature Models:
-70 288C

-70 621C

Local Digital Display:
2 Row by 16 character LCD display for indication of programming parameters and process variable; also displays extreme (min/max) pressure or temperature values
Output Status LED:
Local LED to indicate switch and I AM WORKING output status
Field Accessible Programming:
Convenient keypad allows for easy product configuration and adjustment
Memory:
All programmed data stored in non-volatile memory (saved when power lost)
I AM WORKING States:
Signal
Interpretation
I AM WORKING output "On" continuously

I AM WORKING output pulsed "On" and "Off"

I AM WORKING output "Off"

Normal operation, unit operating properly

Beyond set point, unit operating properly

Loss of power or unit inoperable




 
:

2W2D,
( 2005 )


( M406)

0ExiaIIBT5
-40C = Tamb = +85C
04-8896
 


2W2D only
Class I, Division 1 and 2, Groups A, B, C & D
Class II, Division 1 and 2, Groups E, F & G
Class III
Class I, Zone 0, AEx ia IIC T5
Class I, Zone 0, Ex ia IIC T5
Enclosure Type 4X
I.S. when installed per drawing # A-62174-19

2W2D, 2W3A & 2WLP*
Class I, Division 2, Groups A, B, C & D
Class II, Division 2, Groups F & G
Class III
Class I, Zone 2, AEx nC IIC T5
Class I, Zone 2, Ex nC IIC T5
Enclosure Type 4X

UL Listed, cUL Certifi ed (2W2D & 2W3A)
Pressure & Temperature: UL 50, 913, 1604 & 2279;
CSA No. E79-0, E79-11, E79-15, C22.2 No. 14, 157 & 213 - File # E226592

4W
Class I, Division 2, Groups A, B, C & D
Class II, Division 2, Groups F & G
Class III
Class I, Zone 2, AEx nC IIC T4A
Class I, Zone 2, Ex nC IIC T4A
Enclosure Type 4X

UL Listed, cUL Certifi ed
Pressure & Temperature: UL 50, 913, 1604 &2279;
CSA No. E79-0, E79-11, E79-15, C22.2 No. 14, 157 & 213 - File # E226592

 


ATEX Directive (94/9/EC)
2W2D only

II 1 G EEx ia IIC T5 (OPTIONAL code M419)
II 1 D T+90C
-40C = Tamb = +85C, IP 66
I.S. when installed per drawing # A-62174-20

2W2D, 2W3A & 2WLP*
II 3 G EEx nL IIC T5 (OPTIONAL code M419)
II 3 D T+90C
-40C = Tamb = +85C, IP 66
UL International DEMKO A/S (N.B.# 0539)
Certificate # DEMKO 03 ATEX 0322281X (2W2D models)
EN 50014, 50020, 50021, 50284, 50281-1-1 & 60529
Certificate # DEMKO 03 ATEX 135585X (2W3A models)
EN 50021, 50281-1-1 & 60529

Pressure Equipment Directive (PED) (97/23/EC)
Straight pressure models only
Category IV, Module H1 (OPTIONAL code M407)
TÜV Süddeutschland Bau und Betrieb GmbH (N.B.# 0036)
Certificate # USA 02/04/38/001 thru USA 02/07/38/033

Electromagnetic Compatibility Directive (EMC)
(89/336/EEC, 92/31/EEC & 93/68/EEC)
UL International EMC Services
Certificate File # NC4525 (2W2D only)
EN 55011, 61000-4-2 thru 61000-4-6, 61000-4-8 & 61000-6-2


 


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