| Property | Description/value |
|---|---|
| Storage temperature | −40 … +70 ˚C (−40 … +158 ˚F) |
| Storage humidity range | 0 … 100 % non-condensing |
| Housing material | ABS/PC blend |
| Total weight | 750 g (26 oz) |
| Electromagnetic compatibility |
Complies with the following standard: EN 61326-1:1997 +Am 1:1998, Electrical equipment for measurement, control, and laboratory use - EMC requirements: Basic environment. |
| Property | Description/value |
|---|---|
| Dew point temperature | |
| Measurement range |
DMP74C: −70 … +30 ˚C (−94 … +86 ˚F) DMP74A: −50 … +60 ˚C (−58 … +140 ˚F) DMP74B: −70 … +30 ˚C (−94 … +86 ˚F) |
| Accuracy | ±2 ˚C (±3.6 ˚F), see the accuracy graphs below |
| Dew point range for ±2 ˚C. Accuracy for pressure converted dew point (dew point measured in pressure, calculated to 1 atm dew point value) |
DMP74A: −64 … +60 ˚C (−83 … +140 ˚F) DMP74B: −80 … +20 ˚C (−112 … +68 ˚F) DMP74C: −72 … +20 ˚C (−98 … +68 ˚F) |
| DMP74A: | |
| Response time: 63 % (90 %) at flow rate 0.2 m/s, 1 bar absolute pressure, +20 ˚C | |
| 0 … −40 ˚C Td (+32 … +40 ˚F Td) | 20 s (120 s) |
| −40 … ˚C Td (−40 … +32 ˚F Td) | 10 s (20 s) |
| DMP74B/DMP74C: | |
| Response time: 63 % (90 %) at flow rate 0.2 m/s, 1 bar absolute pressure, +20 ˚C | |
| 0 … −60 ˚C Td (+32 … −76 ˚F Td) | 50 s (340 s) |
| −60 … 0 ˚C Td (−76 … +32 ˚F Td) | 10 s (20 s) |
| Temperature | |
| Measurement range | −10 … 60 ˚C (14 … 140 ˚F) |
| Accuracy at +20 ˚C (+68 ˚F) | ±0.2 ˚C (±0.36 ˚F) |
| Typical temperature dependence of electronics | ±0.005 ˚C/˚C (±0.005 °F/°F) |
| Temperature sensor | Pt100 IEC751 1/3 class B |
| PPM (ppmv or ppmw) | |
| Measurement range (typical) |
DMP74A: 40 … 200000 ppm DMP74B/DMP74C: 10 … 20000 ppm |
| Accuracy at +20 ˚C (+68 ˚F): | |
| < 40 ppm | ±(0.5 ppm + 25.4 % of reading) |
| > 40 ppm | ±(7.3 ppm + 8.3 % of reading) |
| Absolute humidity (DMP74A probe recommended) | |
| Measurement range (typical) | 0.5 … 100 g/m3 (0.2 … 40 gr/ft3) |
| Accuracy |
±(0.2 g/m3 + 10 % of reading) ±(0.1 gr/ft3 + 10 % of reading) |
| Mixing ratio (DMP74A probe recommended) | |
| Measurement range (typical) | 0.2 … 100 g/kg (2 … 700 gr/lbs) |
| Accuracy |
±(0.1 g/kg + 12 % of reading) ±(0.8 gr/lbs + 12 % of reading) |
| Relative humidity (DMP74A) | |
| Measurement range | 0 … 100 % |
| Accuracy at +20 ˚C (+68 ˚F) |
RH < 5 %: ±(0.025 % RH + 17.5 % of reading) RH > 5 %: ±(0.8 % RH + 2 % of reading) |
| Measurement environment | |
| Temperature | −10 … +60 ˚C (+14 … +140 ˚F) |
| Pressure |
DMP74A: 0 … 20 bara (0 … 290 psia) DMP74B: 0 … 20 bara (0 … 290 psia) DMP74C: 0 … 10 bara (0 … 150 psia) |
| Sample flow rate | No effect on dew point accuracy |
Dashed line: For DMP74C the ±2 °C accuracy range is limited to −50 °C Td when used in SF6 gas.
| Property | Description/value |
|---|---|
| Sensor |
DMP74A: Vaisala DRYCAP® 180S DMP74B/DMP74C: Vaisala DRYCAP® 180M |
| Probe material (wetted parts) | Stainless steel (AISI 316L) |
| Sensor protection | Sintered filter, (AISI 316L), item No. HM47280SP |
| Mechanical connection | G1/2" ISO2281 thread with bonded seal ring (U-seal) |
| Housing classification | IP65 (NEMA4) |
| Storage temperature | −40 … +70 ˚C (−40 … +158 ˚F) |
| Storage humidity | 0 … 100 %RH non-condensing |
| Weight | 350 g (12 oz) |
| Property | Description/value |
|---|---|
| Materials | |
| Probe housing material | PET plastic |
| Filter | PTFE membrane, PET plastic grid |
| Connector | Nickel plated brass, M12 5-pin |
| Housing classification, probe body | IP65 |
| Connector | M12 5-pin male |
| Weight, probe head | 45 g (1.6 oz) |
| Dimensions | |
| Probe diameter | 25 mm (0.98 in) |
| Probe length | 96 mm (3.8 in) |
| Property | Description/value |
|---|---|
| DMT242SC sampling cell | |
| Inlet/outlet thread | ISO G 3/8"/G 1/4" |
| Pressure limit | 10 MPa, 100 barg, 1450 psig |
| Material | Stainless steel AISI316 |
| Weight | 220 g (7.8 oz) |
| DMT242SC sampling cell with Swagelok connectors | |
| Inlet/outlet thread | 1/4" Swagelok connectors (for 1/4" tubing) |
| Pressure limit | 4 MPa, 40 barg, 580 psig |
| Material | Stainless steel AISI316 |
| Weight | 285 g (10 oz) |
| DSC74 sampling cell for pressurized gases | |
| Quick connector | Type D/NIP08 |
| Leak screw | Screwdriver operated |
| Inlet/outlet thread | ISO G 3/8"/G 1/4" |
| Thread adapters included |
A) ISO G 3/8" to G 1/4" (female) B) ISO G 3/8" to G 1/2" (male) |
| Pressure limit | 1 MPa, 10 barg, 145 psig |
| Material | Stainless steel AISI316 |
| Weight | 300 g (11 oz) |
| DSC74B 2-pressure sampling cell | |
| Inlet/outlet thread | ISO G 3/8"/G 3/8" |
| Flow adjustment | Manually operated |
| Pressure limit | 1 MPa, 10 barg, 145 psig |
| Material | Stainless steel AISI316 |
| Weight | 390 g (14 oz) |
| DSC74C | |
| DSC74C is a sampling cell that combines DSC74B with DMCOIL cooling/venting coil. | |
| DMCOIL | |
| Coil pipe size | 6 mm (0.24 in) |
| Connection to sampling cell | With ISO G 1/4" and G 3/8" thread adapter |
| Weight | 130 g (4.6 oz) |
| DSS70A sampling system | |
| Measuring range | −60 ˚C (−76 ˚F) Td … Tamb (max Tamb +40 ˚C (+104 ˚F) Td) |
| Operating gases | Air, N2, non-toxic gases, non-flammable, inert gases |
| Inlet/outlet connection | 1/4" SWAGELOK |
| Operating temperature |
Ambient temperature: 0 … +40 ˚C (+32 … +104 ˚F) Gas temperature: max 200 ˚C (392 ˚F) with 2 m (6.6 ft) PTFE tube at 20 ˚C (68 ˚F) |
| Operating pressure |
With pump: 0.6 … 1.2 bara (8.7 … 17.4 psia) Pump disconnected: 0 … 20 bara (0 … 290 psia) |
| Battery operation time for pump | 8 h continuous |
| Filter | 7 mm (0.28 in) inline filter, 1/4" SWAGELOK SS-4F-7 |
| Wetted parts | Stainless steel |
| Carrying case | ABC plastic |
| Weight | 5.5 kg (12 lbs.) |
| Fuse ratings | Glass tube fuse 5 × 20 mm T 2A/250 VAC (Manufacturer: Littlefuse 218002) |