Model 2200 scaler/ratemeter

Scaler/ratemeter

Model 2200 scaler/ratemeter – scaler/ratemeter from Ludlum Measurements. Detector types: GM, scintillation, proportional. Count-rate range: 0–500,000 cpm.

Detector types: GM, scintillation, proportional2
Count-rate range: 0–500,000 cpm2
Weight including battery: 3.4 kg2

Download product sheet (PDF)All values with references – for tender documents

Specifications checked against the manufacturer’s documents on 2026-10-16

Manufacturer’s product page (opens in a new tab)

Overview

Nuclear power & nuclear technology Research & laboratories Environmental monitoring & radiation protection

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Detector

Detector types	GM, scintillation, proportional2
Well detector	Model 243 (optional)1

Measuring range

Scaler count range	0–999,999 counts2
Count-rate range	0–500,000 cpm2
Response time (10–90%)	FAST 4 s; SLOW 22 s2

Electronics & signal

Detector bias	200–2500 V (adjustable)2

Connectivity & interface

Communication	RS-232; USB adapter cable included2

Power & battery

Power supply	95–250 V AC, 50–60 Hz or 4 D batteries2
Battery life, typical	120 h (alkaline batteries)2

Environment & ratings

Operating temperature	−20 to +50 °C2

Ordering & accessories

Weight including battery	3.4 kg2

General

Measurement functions	Single-channel analysis; gross counting1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Documents

PDFModel 2200 General Purpose Scaler/RatemeterDatasheet · Ludlum

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

1
Model 2200 Scaler-Ratemeter
Publisher: Ludlum MeasurementsProduct page Specifications tab (Indicated Use); Introduction; Options tab Checked 2026-10-16
2
Model 2200 General Purpose Scaler/Ratemeter
Publisher: Ludlum MeasurementsDatasheet p. 1, Specifications; p. 1, Specifications (SCALER); p. 1, Specifications (RATEMETER); p. 1, Specifications (HIGH VOLTAGE) … Checked 2026-10-16