Martel Electronics 307, 308 Data sheet

The Martel Electronics 307 and 308 Temperature

307 and 308

Temperature Meters

Meters

ment of temperature. Both instruments provide ±0.3% of

reading or better accuracy and 0.1°C/°F resolution over their

measurement ranges. Both instruments feature input protection

to 60 VDC or 24 Vrms. REL, HOLD, MIN/MAX, and °C/°F

selection functions simplify use. Both automatic power off to

preserve and extend battery life.

provide a variety of options for the accurate measure-

Features:

Single (307) or dual (308) inputs

-200 to +1370 °C /-328 °F to +2,498 °F measurement range

Dual display (308)

°C/°F function select button

Model 307

The 307 is a single-input, auto-ranging temperature

meter with a measurement range of -200 to +1370

°C/-328 °F to +2,498 °F. REL, HOLD, MAX/MIN,

and °C/°F selection functions, and temperature unit

selection are available at the push of a button.

Model 308

The 308 is a dual-input, dual display, auto-ranging

temperature meter with a measurement range of

-200 to +1370 °C/-328 °F to +2,498 °F. REL, HOLD,

MAX/MIN, and °C/°F selection functions, and

temperature unit selection are available at the push

of a button.

Specifications (25°C unless otherwise noted)

Inputs

307 1 308 2

Measurement Range

Celsius -200 °C to +1,370 °C Fahrenheit -328 °F to +2,498 °F

Input Protection 60 VDC or 24 Vrms AC max. Accuracy

Celsius ±0.3 % of reading +1.0 °C Fahrenheit ±0.3 % of reading +2.0 °F

Resolution

Celsius 0.1 °C Fahrenheit 0.1 °F

Display

307 Single 308 Dual

Special Features

Auto power off, REL function, HOLD function, MAX/MIN function Autoranging

Temperature Range

Operating 0 °C to +40 °C; <80% RH Storage -10 °C to +60 °C

Power Requirements

Battery Type 9 V; NEDA 1604, IEC 6F22, JIS 006P

Mechanical

Dimensions 7.2" L x 2.5" W x 1.1" H

(18.4 cm x 6.4 cm x 3.0 cm)

Weight 7.0 ounces (200 gms)

Accessories (included) Battery, instruction manual, Type-K bead sensor (1- w/307; 2- w/308)

Temperature Probe Kits

A variety of temperature probe configurations are available for use with the 307 and 308 temperature meters. All are Type-K, and feature ±2.2°C/±0.75% or ±3.9°F/±0.75% accuracy.

TP-K01 — Bead Probe

-50°C to 200°C/-58°F to +392°F

TP-K02 — Immersion Probe

-50°C to 700°C/-58°F to +1,292°F

TP-K03 — Surface Probe

-50°C to 400°C/-58°F to +752°F

TP-K04 — Piercing Probe

-50°C to 600°C/-58°F to +1,122°F

TP-K05 — Surface Probe

-50°C to 400°C/-58°F to +752°F

TP-K06 — Air & Gas Probe

-50°C to 800°C/-58°F to +1,504°F