PR8111, PR8112

1- or 2-Pen Chart Recording of DC Voltage Signals with
an Easy-to-Use Portable Pen Recorder

Pen Recorders are still an indispensable tool for field technicians requiring on-the-spot printed reports during plant maintenance and troubleshooting. The Hioki PR8111 and PR8112 Pen Recorders are suited for applications where keeping analog records of measurement data are still required for complying with company standards.

Key Features
• Easily portable, compact size
• Support for three power sources, can be powered with dry-cell batteries
• Protection from dripping water and dust, ships with a drip-proof cover
• Pen-based, records data reliably
• Easy enough for anyone to use

Model No. (Order Code)

PR8111 1 pen
PR8112 2 pens

Note: Instrument does not include input cords. Input terminals are Johnson terminals and require connection of a power supply. *Connection Cord L9257 can also be used.


Corrosion Protection Maintenance of Railroad Tracks

Electrical corrosion protection maintenance often requires recording waveforms outdoors and the recorded waveforms sometimes need to be stored for long periods of time. The PR8111 Pen Recorder’s wide ranges, from highly-sensitive (1mV Range) to high voltage (250V Range), gives you the flexibility to use it in broad applications. The pen recorder is also used for leakage current measurement between the track or rail and buried facilities of DC electric railroads. The battery power functionality lets you use the PR8111 to record anywhere in the field.

Environmental Testing

Pen recorders are also widely used as recorders of measuring instruments for environmental testing. Since the recorder can be powered by batteries, it is particularly useful for recording outdoors without concern for AC power. Connect the following environmental sensors to record a variety of signals to conduct analysis and troubleshoot issues:

Sound level meter: Record noise in the vicinity of an airport
Illuminometer: Record changes during sunlight hours as a result of the construction of elevated railway tracks
Odor meter: Inspect deodorization equipment
Water quality meter: Monitor wastewater and inspect groundwater and hot spring water
Thermometer: Environmental assessment for agriculture
Power analyzer: Inspect power quality for railways
Anemometer: Conduct safety management for cranes and railways
Magnetic field meter: Identify the influence of a power line on the human body

Basic specifications (Accuracy guaranteed for 1 year)

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

PR8111 PR8112
No. of pens 1 pen 2 pens
Operating method Self-balancing, Disposable felt pen recording
Input DC voltage (Isolated input channels, isolated input and frame)
Measurement ranges ±1 mV to 500 mV (9 ranges), ±1 V to 250 V (8 ranges)
Max. allowable input 250 V DC (at V range), 30 V DC (at mV range), Max. rated voltage to earth: 300 V DC, AC, CAT II
Recording accuracy ±0.5 % of effective recording width (excluding contraction and expansion of recording paper)
Recording width 150 mm (5.91 in)
Pen interval 5 mm (0.20 in)
Pen speed 500 mm/s or greater (using AC adapter)
Chart speed 10 mm/min to 600 mm/min (8 ranges), 10 mm/hr to 600 mm/hr (8 ranges)
Accuracy: ±0.25 % (at 500 mm or higher continuous recording)
Recording paper Fanfold plain paper: SE-10Z-2, length: 15 m (49.22 ft)
Roll plain paper: SE-10, length: 20 m (65.62 ft)
Power supply (1) AC adapter 9418-15 (100 to 240 V, 50/60 Hz)
(2) D size alkaline battery (LR20) × 6 (When used with the AC adapter, the adapter takes precedence)
(3) DC power supply: 10 to 27 V DC (cable available by special order)
Continuous use time 50 hr (based on in-house testing conditions, use LR20 batteries) 25 hr (based on in-house testing conditions, use LR20 batteries)
Max. rated power 4 VA (AC adapter, DC power) or 3 VA (dry-cell batteries)
Dimensions and mass 292 mm (11.50 in) W × 177 mm (6.97 in) H × 182 mm (7.17 in) D, 3.9 kg (137.6 oz) (main unit only), 4.8 kg (169.3 oz) (with dry-cell batteries) 292 mm (11.50 in) W × 177 mm (6.97 in) H × 182 mm (7.17 in) D, 4.4 kg (155.2 oz) (main unit only), 5.3 kg (186.9 oz) (with dry-cell batteries)
Accessories Felt pen P-1201A (Red) ×1, Recording paper SE-10Z-2 (fanfold) ×1, AC Adapter 9418-15 ×1, Front cover ×1, Drip-proof cover ×1, Instruction manual ×1 Felt pen P-1201A (Red) ×1, Felt pen P-1202A (Green) ×1, Recording paper SE-10Z-2 (fanfold) ×1, AC adapter 9418-15 ×1, Front cover ×1, Drip-proof cover ×1, Instruction manual ×1
Catalog: PEN RECORDER PR8111, PR8112 Download PDF  [1MB] English

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