Perfect multiprobes for a combination of spot checking and unattended deployments. Use with any PC or SVR4A®, NX8 and NX10 Handheld displays.
Compact DS:
- Is only 21.5” long and 2.6" in diameter, which makes it very portable.
- Supports SDI-12 communication protocol. It will easily connect to a datalogger like Sutron®, Handar®, Waterlog®, or any datalogger that uses SDI-12.
- Supports RS232 communication protocol. It will easily connect to a PC or PDA.
- Internal Battery Pack. 8 AA batteries for unattended deployments when needed.
Measures up to 10 parameters simultaneously:
- Temperature in °C and °F
- Conductivity in µS/cm and mS/cm
- Salinity in ppt
- TDS
- pH
- Dissolved Oxygen in mg/l and %
- ORP (Redox) in mV
- Depth in meters or feet
- Total dissolved gas “TDG” mmHg
- Self clean Turbidity sensor
Specs Compact DS:
- Size: Outer diameter: 2.6” (6.6 cm)
- Length: 21.5” (54.61 cm)
- Weight: 3.8 lbs/1.7 kg. ( Fully loaded)
- Computer Interface: RS-232, SDI-12 and RS-485
- Memory: 120,000 measurements
- Operating Temperature: -5 to 50 °C
- Maximum Depth: 225 m
- Internal Battery Pack: 8AA
The Temperature sensor is a 30k ohm variable resistance thermistor.
The temperature sensor is included with every Hydrolab sonde.
- Range: -5 to 50 °C
- Accuracy: +/- 0.10 °C
- Resolution: 0.01 °C
Optical Dissolved Oxygen sensor. Hach LDO sensor:
- Range: 0 to 20 mg/L
- Accuracy: +/- 0.1 up to 8 mg/L ; +/- 0.2 above 8 mg/L
- Resolution: 0.01 mg/L
The Conductivity sensor uses four graphite electrodes in an open cell design.
- Range: 0-100 mS/cm
- Accuracy: ± (0.5% of reading + 0.001 mS/cm)
- Resolution: 0.001
The pH sensor uses a glass bulb and refillable reference electrode.
The ORP sensor uses a simple platinum band that donates or accepts electrons to monitor chemical reactions, quantify ion activity, or determine the oxidizing or reducing properties of a solution.
pH:
- Range: 0 to 14 pH units
- Accuracy: +/- 0.2 units
- Resolution: 0.01 units
ORP:
- Range: -999 to 999 mV
- Accuracy: +/- 20 mV
- Resolution: 1 mV
Custom-made Pressure sensors with two range options.
- Range: 0 to 25m or 0 to 100m
- Accuracy: +/- 0.05 meters
- Resolution: 0.01 meters
The Total Dissolved Gas (TDG) sensor uses a pressure transducer mounted behind a rigid gas-permeable silicone membrane to measure the amount of total gaseous compounds dissolved in a liquid. Maximum water depth is 25 m.
- Range: 400 – 1300 mmHg
- Accuracy: +/- 0.1% of span
- Resolution: 1.0 mmHg
The Self-Cleaning Turbidity sensor measures from 0 to 3000 NTU and includes a user-programmable cleaning system to remove any fouling or debris that could otherwise affect readings.
Range: 0-3000 NTU
- Accuracy (compared to Stable-Cal): 1% up to 100 NTU, 3% from 100-400 NTU, 5% from 400-3000 NTU
- Resolution: 0.1 NTU from 0-400 NTU; 1 NTU for >400 NTU
- Temperature Coefficient: 0.05%/C
Most common questions and answers:
Q: Does the Compact DS use the same communication protocol as the Datasonde®?
A: Yes. The Compact DS uses the same firmware as the Datasonde® with all its features.
Q: Can I use the Hydras 3 LT to communicate with the Compact DS?
A: Yes.
Q: Can I use the Hydras 3L Pocket software with the Compact DS?
A: Yes.
Q: Can I use my existing Hydrolab® cables to connect to the Compact DS?
A: Yes. The standard Compact DS comes with the standard Hydrolab® 6 pin cable connector.
Q: I do not like the standard Hydrolab® 6 pin cable connector, can the Compact DS be fitted with a YSI® type connector?
A: Yes. The "Compact DS" can be fitted with an optional YSI® type cable connector with recessed pins for maximum ruggedness and it will work with your existing YSI® cables.
Q: Does the Compact DS have internal memory?
A: Yes, it has enough internal memory for 120,000 measurements.
Q: Which batteries does the Compact DS use ?
A: The Compact DS is equipped with a 8 AA internal battery pack. They are designed for short unattended deployments only ( one to four weeks depending on the setup).
Q: Does the Compact DS require internal batteries when used with the SVR4A®?
A: No, the Compact DS does not require internal batteries when used with the SVR4® display.
Q: Does the Compact DS require internal batteries when used with the NX8 or the NX10 handheld units?
A: No, the Compact DS does not require internal batteries when used with the NX8 or the the NX10 handheld units.
Q: Does the Compact DS require external power when used with the computer ?
A: No external power required when internal batteries are installed.
Q: When connected to a Datalogger, can the Compact DS still log data internally ?
A: Yes. The Compact DS can perform all the following tasks simultaneously:
- Communicate with a PC or Handheld unit via RS232 or RS422
- Communicate to a datalogger via SDI-12 or RS232
- Log data to its internal memory up to 4 files at a time, even with overlapping dates
For a quote please email your request to sales or call 512-846-2893