Area Monitors of the GRAETZ Strahlungsmeßtechnik GmbH

Area Monitors

WS05C-3 mit Warnleuchtsäulen und Sonden The area monitors of the type "WS 05 C" are stationary room monitoring systems for the dose rate measurement of gamma radiation and X-rays, preferably used for the permanent monitoring of isotope laboratories, radiotherapy rooms, storage rooms for radioactive materials, etc..

The "WS 05 C" is available in the following versions:

WS 05 C-1

WS 05 C-2

WS 05 C-3 (see picture)

Each measuring channel indicates the measured values on a digital, illuminated LC-display (60x30 mm). For each measuring channel four individual dose rate alarm thresholds are free programmable over the whole measuring range of the connected probes.

When using gamma probes, the dose rate shown on the LC-display is Sv/h. When an end window probe for α- and β- measurements or a NaJ-scintillation probe for β-/γ-measurements is connected, the measured value is displayed in cps. Additionally to the digital display, the dose rate is also indicated in analog form by a logarithmic bar graph.

The instrument is autoranging. When a measuring channel triggers a dose rate alarm, the integrated alarm light of the "WS 05 C" gives an optical as well as an acoustical alarm. In the standard version: orange for "alarm threshold exceeded" and red for "error" (e. g. defective probe). The red LED situated above the display indicates, by which measuring channel the alarm has been triggered.

For connecting the "WS 05 C" with a computer, an RS-232-interface for one measuring channel is available.

Options:

Relay output for an additional external alarm lamp for each measuring channel or a
potential free relay output for each measuring channel instead of the relay output for the external alarm lamps (max. switching voltage/current: 24V, 20 mA).

Disconnectible acoustic alarm (only triggered when an alarm threshold is exceeded and the monitored room's door is open)

Emergency power supply (300W) for the uninterruptible operation of the "WS 05 C" in case of mains failure.

Integrated alarm lamp (optical/acoustical) for the indication of the following conditions:
            green:      "ready for operation"
            orange:    "alarm threshold exceeded"
            red:           "error"

External alarm lamps (optical/acoustical)

Probe cable (standard length: 1,25 m), extension up to 100 m

Special versions upon request

Technical Data "WS 05 C"

Types: WS 05 C-1 for the connection of one probe (1 channel)
WS 05 C-2 for the simultaneous connection of max. 2 probes (2 channels)
WS 05 C-3 for the simultaneous connection of max. 3 probes (3 channels)

Probes: The probes are preferably connected by means of a probe cable (up to 100 m) or
directly via the sockets of the of the "WS 05 C".

Measuring size: H*(10) ambient dose rate equivalent for CE-probes

Available probes:

18545 CE:
18550 CE:
18529 CE:
18509 CE:
18526 D:
NaJ-Scintillation Probe 2002:
Indicating range                       PTB-approved measuring range

  60 nSv/h - 200 µSv/h              150 nSv/h - 200 µSv/h    (γ-radiation and X-rays)
100 nSv/h -   20 mSv/h               10 µSv/h -   20 mSv/h   (γ-radiation and X-rays)
  10 µSv/h -   10 Sv/h                 0,5 mSv/h - 10 Sv/h      (γ-radiation and X-rays)
  10 µSv/h -     1 Sv/h                   50 µSv/h -      1 Sv/h      (γ-radiation and X-rays)
cps, α-, β-, γ-radiation

cps, β-, γ-radiation

PLEASE NOTE:
The PTB-approval of the probes is only valid when used together with the dose rate meter "X5Cplus"
Measuring accuracy: ≤ +/- 10%

Display: each measuring channel is equipped with an illuminated LC-display

Indication: - digital indication in Sv/h or cps, depending on the connected probe
- analog indication by a logarithmic bar graph

Alarm: - probe failure alarm
- dose rate alarm thresholds 1 - 4
- dose alarm thresholds 1 - 4

Alarm signals: - integrated optical/acoustical signal, triggered when a connected probe signalizes a dose rate alarm (orange) and/or error message (red)
- red LED for alarm indication when an alarm threshold is triggered (at each measuring channel)

Interface: RS-232 for 1 measuring channel (WS 05 C-2 / WS 05 C-3 → first measuring channel)

Dose rate alarm thresholds: for each measuring channel 4 dose rate alarm thresholds are free programmable over the whole measuring range of the connected probes

Dose alarm thresholds: for each measuring channel 4 dose alarm thresholds are free programmable over the whole measuring range of the connected probes

Temperature range:     0 °C up to +40 °C for the area monitor
-30 °C up to +60 °C for the probes

Humidity: max. 90% relative humidity

Power supply: 90-260V AC    200 mA max.    50/60 Hz

Housing: plastic, high impact

Dimensions: 260 mm x 230 (455) mm x 150 mm

Weight: approx. 2,8 kgs

PDF-file: WS05C_en.pdf (122 KB)

REMARK:
The electronics used for each single measuring channel is taken from the PTB-approved dose rate meter "X 5 C plus".

Types:	WS 05 C-1 for the connection of one probe (1 channel) WS 05 C-2 for the simultaneous connection of max. 2 probes (2 channels) WS 05 C-3 for the simultaneous connection of max. 3 probes (3 channels)
Probes:	The probes are preferably connected by means of a probe cable (up to 100 m) or directly via the sockets of the of the "WS 05 C".
Measuring size:	H*(10) ambient dose rate equivalent for CE-probes
Available probes: 18545 CE: 18550 CE: 18529 CE: 18509 CE: 18526 D: NaJ-Scintillation Probe 2002:	Indicating range PTB-approved measuring range 60 nSv/h - 200 µSv/h 150 nSv/h - 200 µSv/h (γ-radiation and X-rays) 100 nSv/h - 20 mSv/h 10 µSv/h - 20 mSv/h (γ-radiation and X-rays) 10 µSv/h - 10 Sv/h 0,5 mSv/h - 10 Sv/h (γ-radiation and X-rays) 10 µSv/h - 1 Sv/h 50 µSv/h - 1 Sv/h (γ-radiation and X-rays) cps, α-, β-, γ-radiation cps, β-, γ-radiation PLEASE NOTE: The PTB-approval of the probes is only valid when used together with the dose rate meter "X5Cplus"
Measuring accuracy:	≤ +/- 10%
Display:	each measuring channel is equipped with an illuminated LC-display
Indication:	- digital indication in Sv/h or cps, depending on the connected probe - analog indication by a logarithmic bar graph
Alarm:	- probe failure alarm - dose rate alarm thresholds 1 - 4 - dose alarm thresholds 1 - 4
Alarm signals:	- integrated optical/acoustical signal, triggered when a connected probe signalizes a dose rate alarm (orange) and/or error message (red) - red LED for alarm indication when an alarm threshold is triggered (at each measuring channel)
Interface:	RS-232 for 1 measuring channel (WS 05 C-2 / WS 05 C-3 → first measuring channel)
Dose rate alarm thresholds:	for each measuring channel 4 dose rate alarm thresholds are free programmable over the whole measuring range of the connected probes
Dose alarm thresholds:	for each measuring channel 4 dose alarm thresholds are free programmable over the whole measuring range of the connected probes
Temperature range:	0 °C up to +40 °C for the area monitor -30 °C up to +60 °C for the probes
Humidity:	max. 90% relative humidity
Power supply:	90-260V AC 200 mA max. 50/60 Hz
Housing:	plastic, high impact
Dimensions:	260 mm x 230 (455) mm x 150 mm
Weight:	approx. 2,8 kgs
PDF-file:	WS05C_en.pdf (122 KB)

Area Monitors

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