DP4® | Detecto-Pak 4 

The ruggedly designed DP 4 utilizes portable flame ionization detection (FID) technology to measure very small concentrations of hydrocarbons for 
walking and mobile leak surveys. It reads from 0-10, 0-50, 0-100, 0-1,000, and 0-10,000 parts per million (PPM) and has a fast response time due 
to its strong internal sample pump system. When hydrocarbons are present in the sample, ionization occurs. The amount of ionization is electrically 
measured and converted to a visual indication of hydrocarbon level in PPM via the instrument’s meter.

Heath designed the DP 4 to maximize its operational life by utilizing “intelligent” electronics which require fewer adjustments than mechanical 
component. This results in a more stable instrument with reliable fuel flow rates and calibration settings. The DP 4 automatically stops fuel flow 
when it is turned “Off”, extending the operating supply in the fuel cylinder and eliminating the need for the operator to remove the cylinder 
after each use. 

Automatic monitoring of the input sample flow rate alerts the operator when the sample rate is not within an allowed range using audio and LED 
alarms. Calibration in the field continues to be simple. The DP 4 can be carried with a shoulder strap or built-in handle or converted for use 
in a mobile leak unit equipped with an auxiliary sample system.

Instrument Weight:                 7 lbs. (3.2 kg)							

Telescopic Probe:  	                Extends from 25 to 41 inches (63 cm to 104 cm); 1 lb. (.45 kg)

Sensitivity:  	                5-scale operation:  0-10, 50,100, 1000, and 10,000 PPM gas in air (Optional 100,000 PPM)

Sampling Rate:  	                2.0 liters per minute, nominal

Fuel Consumption:                 30 cc per minute (40% hydrogen and 60% nitrogen)
                                        (High altitude above 3,000 ft - 42% hydrogen and 58% nitrogen)

Meter Readout:                      Analog meter with backlight

Alarms:  		                Pulsating audible and visual alarm for leak indications: continuous audible 
                                        for flame-out indication. Low sample audible alarm and LED indicator

Ignition: 		                Low voltage hot wire

Batteries:  		                Nickel-Metal-Hydride (NiMH) rechargeable battery pack.  1.5 AHr capacity at 12 VDC

Battery Charger:                     Available in 110 VAC or 220 VAC, 50-60 HZ (must specify) 14 oz, (0.4 kg)
					

Fuel Bottle Capacity:               Approximately 7 cubic inches each (water capacity)

Daily Operating Life:               Approximately 10 hours with full battery charge and two fuel bottles

Total Shipping Weight:            29 lbs. (13.2 kg

Carrying Case Dimensions:       28”L x 19 1/2” W x 9”H(71 cm x 49 cm x 23 cm)

Warranty:  		                One year parts and labor, excluding abuse and unauthorized