Data Collection Brochure 2020

TECHNICAL SPECIFICATIONS

ENCLOSURE DIMENSIONS 125 x 125 x 80 mm + Antenna

ELECTRICAL

PARAMETER

Min

Typ

Max

Unit

Sealed to IP68 (BS EN 60529:1992) Diecast Aluminium, Nylon Coated

RATING

OPERATING TEMPERATURE

The vanwalt DataSlave is unique The vanwalt DataSlave accepts an input from a sensor which measures single or multiple parameters. The vanwalt DataSlave turns any sensor into a wireless unit. It sits at location and transfers sensor measurements The unit is provisioned with a radio “tile” which enables it to communicate with a PC or a vanwaltDatahub wirelessly over a considerable distance, up to 10km line of sight. If the connected sensor has memory then the vanwaltDataSlave transmits the data from the sensor’s internal memory. If the sensor does not have memory then the DataSlave collects the data from the sensor and stores it inside its own onboard memory. The vanwaltDataSlave was designed by and manufactured in the UK under license from Van Walt Ltd. Who is it for? The vanwaltDataSlave is perfectly suited for situations when data needs to be collected from sensors deployed in locations which are difficult to access, for example restricted areas. The vanwaltDataSlave can be daisy chained, up to a quantity of 50, with an automatic connection to telemetry hubs such as the vanwaltDatahub.

-30 1

+25

+60

0 C

SUPPLY VOLTAGE SENSOR EXTERNAL POWER INPUT SUPPLY VOLTAGE INTERNAL 2 X AA BATTERIES SENSOR CURRENT CONSUMPTION INTERNAL POWER SENSOR CURRENT CONSUMPTION EXTERNAL POWER

MATERIAL

9

12

15

V

TEMP. RANGE OF SEAL ENCLOSURE WALL & LID THICKNESS

-60 0 C to 240 0 C

1.8

3

3.6

V

3 mm

-

-

75

mA

-

-

1

A

MODBUS /SDI-12 CONNECTOR BL5.08/6 PIN Signal

RF OUTPUT POWER

-

-

100

100mW

1 O perating temperature range will be determined by the battery . A lkaline AA batteries will limit the unit to -20 o C +54 o F

1

Switched +12V DC

RECEIVER CHARACTERISTICS

2

Modbus D-

PARAMETER

Min

Typ

Max

Unit

3

Modbus D+

SENSITIVITY AT 200 bps

-

-124

-

dBm

4

SDI-12

SENSITIVITY AT 2400 bps

-

-117

-

dBm

5

oV

SENSITIVITY AT 100,000 bps

-

-104

-

dBm

6

oV

U nder good line of sight conditions , it should achieve a range of 10 km at its lowest data range . R ange is most affected by the terrain and antenna height

SENSOR EXTERNAL POWER CONNECTOR BL5.08/2 PIN Signal 1 9-15V DC 2 oV T he supply to the sensor will be switched on and off as required to save power F or external 12 V B attery when using higher power sensors

GENERAL CHARACTERISTICS

PARAMETER

Description

Min Typ Max Unit

mA µA bps

20 8 00,000 ±0.5 ±5

- - 2400

- - 200

Receive Current Sleep Current Over Air Data Rate Frequency Accuracy RTC Accuracy

ALL OPERATING CONDITIONS AT 3.3 V NORMAL SUPPLY

ppm ppm

- -

- -

PULSE COUNTER INPUT BL5.08/3 PIN Signal 1

RF Output Transmit Current RF Output Transmit Current RF Output Transmit Current

- 56 - 94 - 56

- 62

25 67

mW mA mW mA

FREQUENCY 869.1 - 869.4 MHZ

- 102

100 110

FREQUENCY 869.4 - 869.65 MHZ

Pulse Count Input

2 3

oV

FREQUENCY 869.65 - 870 MHZ mW mA The vanwalt DataSlave covers the 434, 869 and 915 MHz license exempt frequency bands for worldwide use - 62 25 67

oV

T his is an optional connector for future expansion . I t can count on positive or negative edges and detects a closure to ground .

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