Det-Tronics THZ HART Combustible Gas Transmitter - Manual (Page 2)

SPECIFICATIONS
DETECTION RANGE—
Depends on sensor selected. Refer to form number
90-1079 (Specification Data sheet for Det-Tronics
electrochemical sensors) for details.
COMPATIBLE SENSORS—
Sensors available for use with the THZ Transmitter
include Hydrogen Sulfide, Oxygen, Carbon
Monoxide, Sulfur Dioxide, Nitrogen Dioxide, and
Chlorine gases. Refer to form number 90-1079 for
additional information.
INPUT VOLTAGE—
24 vdc.
POWER CONSUMPTION (with Sensor)—
0.5 watts nominal, 1 watt maximum.
CURRENT OUTPUT—
Linear 4 to 20 ma output proportional to detection
range, non-isolated; three-conductor field wiring
required.
DIGITAL DISPLAY—
Two rows of five alphanumeric characters are provid-
ed: characters on top row are 18 mm (0.7 inch) high
black digits on a reflective background; bottom row
display are 10 mm (0.4 inch) high digits on a reflec-
tive background. Two digits are provided to show
HART address indication; and % of measurement
span is shown on a bar graph with upper and lower
out-of-range indicators.
H
2
S SENSOR TEMPERATURE RANGE—
Refer to form number 90-1079 for details.
TRANSMITTER TEMPERATURE RANGE—
Operating: –40°F to +185°F (–40°C to +85°C).
Storage:
–40°F to +185°F (–40°C to +85°C).
SENSOR ENCLOSURE MATERIAL—
316 stainless steel.
TRANSMITTER ENCLOSURE MATERIAL—
Copper-free aluminum with chromatic conversion
seal undercoat and polyurethane top coat.
DIMENSIONS—
Refer to Figure 1 for dimensions of the sensor and
Figure 2 for dimensions of the THZ transmitter.
CERTIFICATIONS—
Sensor:
Refer to form no. 90-1079 for details.
Transmitter: FM Approval:
Class I, Division 1, Groups A, B, C, D;
Class II & III, Division 1, Groups E, F, G.
NEMA Type 4X.
IP66.
Temperature Code: T6 @ 60°C Max.
Operating Ambient Temperature.
SHIPPING WEIGHT—
Sensor:
2.5 pounds (1.28 kilograms).
Transmitter w/encl.: 3 lbs, 2.5 oz (1.42 kilograms).
2
Sensor A B C
H
2
S 3.75 (9.6) 2.0 (5.0) 1.75 (4.5)
O
2
6.1 (15.5) 2.2 (5.6) 1.1 (2.8)
CO 5.0 (12.7) 2.2 (5.6) 1.1 (2.8)
Cl
2
5.0 (12.7) 2.2 (5.6) 1.1 (2.8)
SO
2
3.75 (9.6) 2.0 (5.0) 1.75 (4.5)
NO
2
3.75 (9.6) 2.0 (5.0) 1.75 (4.5)
Available thread sizes = 3/4 inch NPT or 20 mm
A
A1706
C B
Figure 1—Sensor Dimensions in Inches (Centimeters)